ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor284891195 <...> Warning: Permanently added '10.128.1.80' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor284891195", ["ci2-upstream-fs/syz-executor284891195"], 0x7ffcdc76f140 /* 10 vars */) = 0 brk(NULL) = 0x55557174d000 brk(0x55557174dd80) = 0x55557174dd80 arch_prctl(ARCH_SET_FS, 0x55557174d400) = 0 set_tid_address(0x55557174d6d0) = 5600 set_robust_list(0x55557174d6e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-upstream-fs/syz-executor284891195", 4096) = 43 getrandom("\x8b\x4c\xf4\xd6\x45\xf2\xf1\xa0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557174dd80 brk(0x55557176ed80) = 0x55557176ed80 brk(0x55557176f000) = 0x55557176f000 mprotect(0x7fd823d50000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 getrandom("\x35\x54\xc0\x80\x7f\xc0\xca\xaf", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.5K12KZ", 0700) = 0 chmod("./syzkaller.5K12KZ", 0777) = 0 chdir("./syzkaller.5K12KZ") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5602 attached , child_tidptr=0x55557174d6d0) = 5602 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5602] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5602] <... set_robust_list resumed>) = 0 [pid 5602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5602] chdir("./0") = 0 [pid 5602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5602] setpgid(0, 0) = 0 [pid 5602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5602] write(3, "1000", 4) = 4 [pid 5602] close(3) = 0 [pid 5602] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5602] write(1, "executing program\n", 18) = 18 [pid 5602] memfd_create("syzkaller", 0) = 3 [pid 5602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5602] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5602] munmap(0x7fd81b891000, 138412032) = 0 [pid 5602] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5602] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5602] close(3) = 0 [pid 5602] close(4) = 0 [pid 5602] mkdir("./file1", 0777) = 0 [ 100.604092][ T5602] loop0: detected capacity change from 0 to 32768 [pid 5602] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5602] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5602] chdir("./file1") = 0 [pid 5602] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5602] ioctl(4, LOOP_CLR_FD) = 0 [pid 5602] close(4) = 0 [pid 5602] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5602] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5602] exit_group(0) = ? [pid 5602] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5602, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/file1") = 0 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./0") = 0 mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5605 attached , child_tidptr=0x55557174d6d0) = 5605 [pid 5605] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5605] rt_sigprocmask(SIG_SETMASK, [] [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5605] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5605] chdir("./1") = 0 [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5605] setpgid(0, 0) = 0 [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5605] write(3, "1000", 4) = 4 [pid 5605] close(3) = 0 [pid 5605] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5605] write(1, "executing program\n", 18) = 18 [pid 5605] memfd_create("syzkaller", 0) = 3 [pid 5605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5605] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5605] munmap(0x7fd81b891000, 138412032) = 0 [pid 5605] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5605] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5605] close(3) = 0 [pid 5605] close(4) = 0 [pid 5605] mkdir("./file1", 0777) = 0 [pid 5605] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5605] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [ 101.240569][ T5605] loop0: detected capacity change from 0 to 32768 [pid 5605] chdir("./file1") = 0 [pid 5605] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5605] ioctl(4, LOOP_CLR_FD) = 0 [pid 5605] close(4) = 0 [pid 5605] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5605] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5605] exit_group(0) = ? [pid 5605] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./1/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1/file1") = 0 umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./1/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1") = 0 mkdir("./2", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5608 attached , child_tidptr=0x55557174d6d0) = 5608 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5608] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5608] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5608] chdir("./2") = 0 [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5608] setpgid(0, 0) = 0 [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5608] write(3, "1000", 4) = 4 [pid 5608] close(3) = 0 [pid 5608] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5608] write(1, "executing program\n", 18) = 18 [pid 5608] memfd_create("syzkaller", 0) = 3 [pid 5608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5608] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5608] munmap(0x7fd81b891000, 138412032) = 0 [pid 5608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5608] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5608] close(3) = 0 [pid 5608] close(4) = 0 [pid 5608] mkdir("./file1", 0777) = 0 [pid 5608] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5608] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5608] chdir("./file1") = 0 [pid 5608] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5608] ioctl(4, LOOP_CLR_FD) = 0 [pid 5608] close(4) = 0 [pid 5608] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5608] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5608] exit_group(0) = ? [pid 5608] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5608, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [ 101.811649][ T5608] loop0: detected capacity change from 0 to 32768 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./2/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./2/file1") = 0 umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./2/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./2") = 0 mkdir("./3", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5609 attached , child_tidptr=0x55557174d6d0) = 5609 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5609] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5609] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5609] chdir("./3") = 0 [pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5609] setpgid(0, 0) = 0 [pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5609] write(3, "1000", 4) = 4 [pid 5609] close(3) = 0 [pid 5609] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5609] write(1, "executing program\n", 18) = 18 [pid 5609] memfd_create("syzkaller", 0) = 3 [pid 5609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5609] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5609] munmap(0x7fd81b891000, 138412032) = 0 [pid 5609] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5609] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5609] close(3) = 0 [pid 5609] close(4) = 0 [pid 5609] mkdir("./file1", 0777) = 0 [pid 5609] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [ 102.291436][ T5609] loop0: detected capacity change from 0 to 32768 [pid 5609] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5609] chdir("./file1") = 0 [pid 5609] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5609] ioctl(4, LOOP_CLR_FD) = 0 [pid 5609] close(4) = 0 [pid 5609] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5609] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5609] exit_group(0) = ? [pid 5609] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5609, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./3/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./3/file1") = 0 umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./3/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./3") = 0 mkdir("./4", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5610 attached , child_tidptr=0x55557174d6d0) = 5610 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5610] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5610] <... set_robust_list resumed>) = 0 [pid 5610] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5610] chdir("./4") = 0 [pid 5610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5610] setpgid(0, 0) = 0 [pid 5610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5610] write(3, "1000", 4) = 4 [pid 5610] close(3) = 0 [pid 5610] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5610] write(1, "executing program\n", 18) = 18 executing program [pid 5610] memfd_create("syzkaller", 0) = 3 [pid 5610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5610] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5610] munmap(0x7fd81b891000, 138412032) = 0 [pid 5610] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5610] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5610] close(3) = 0 [pid 5610] close(4) = 0 [pid 5610] mkdir("./file1", 0777) = 0 [pid 5610] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5610] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5610] chdir("./file1") = 0 [pid 5610] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5610] ioctl(4, LOOP_CLR_FD) = 0 [pid 5610] close(4) = 0 [pid 5610] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5610] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5610] exit_group(0) = ? [ 102.796550][ T5610] loop0: detected capacity change from 0 to 32768 [pid 5610] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5610, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./4/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./4/file1") = 0 umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./4/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./4") = 0 mkdir("./5", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5611 attached , child_tidptr=0x55557174d6d0) = 5611 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5611] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5611] <... set_robust_list resumed>) = 0 [pid 5611] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5611] chdir("./5") = 0 [pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5611] setpgid(0, 0) = 0 [pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5611] write(3, "1000", 4) = 4 [pid 5611] close(3) = 0 [pid 5611] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5611] write(1, "executing program\n", 18) = 18 executing program [pid 5611] memfd_create("syzkaller", 0) = 3 [pid 5611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5611] munmap(0x7fd81b891000, 138412032) = 0 [pid 5611] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5611] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5611] close(3) = 0 [pid 5611] close(4) = 0 [pid 5611] mkdir("./file1", 0777) = 0 [pid 5611] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5611] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5611] chdir("./file1") = 0 [pid 5611] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5611] ioctl(4, LOOP_CLR_FD) = 0 [pid 5611] close(4) = 0 [pid 5611] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5611] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5611] exit_group(0) = ? [pid 5611] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5611, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [ 103.344692][ T5611] loop0: detected capacity change from 0 to 32768 umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./5/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./5/file1") = 0 umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./5/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./5") = 0 mkdir("./6", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5612 attached , child_tidptr=0x55557174d6d0) = 5612 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5612] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5612] <... set_robust_list resumed>) = 0 [pid 5612] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5612] chdir("./6") = 0 [pid 5612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5612] setpgid(0, 0) = 0 [pid 5612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5612] write(3, "1000", 4) = 4 [pid 5612] close(3) = 0 [pid 5612] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5612] write(1, "executing program\n", 18) = 18 [pid 5612] memfd_create("syzkaller", 0) = 3 [pid 5612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5612] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5612] munmap(0x7fd81b891000, 138412032) = 0 [pid 5612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5612] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5612] close(3) = 0 [pid 5612] close(4) = 0 [pid 5612] mkdir("./file1", 0777) = 0 [pid 5612] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5612] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5612] chdir("./file1") = 0 [pid 5612] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5612] ioctl(4, LOOP_CLR_FD) = 0 [pid 5612] close(4) = 0 [pid 5612] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5612] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5612] exit_group(0) = ? [pid 5612] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5612, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 103.833335][ T5612] loop0: detected capacity change from 0 to 32768 openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./6/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./6/file1") = 0 umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./6/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./6") = 0 mkdir("./7", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5613 attached , child_tidptr=0x55557174d6d0) = 5613 [pid 5613] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5613] <... set_robust_list resumed>) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5613] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5613] chdir("./7") = 0 [pid 5613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5613] setpgid(0, 0) = 0 [pid 5613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5613] write(3, "1000", 4) = 4 [pid 5613] close(3) = 0 [pid 5613] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5613] write(1, "executing program\n", 18) = 18 executing program [pid 5613] memfd_create("syzkaller", 0) = 3 [pid 5613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5613] munmap(0x7fd81b891000, 138412032) = 0 [pid 5613] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5613] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5613] close(3) = 0 [pid 5613] close(4) = 0 [pid 5613] mkdir("./file1", 0777) = 0 [pid 5613] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5613] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5613] chdir("./file1") = 0 [pid 5613] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [ 104.336156][ T5613] loop0: detected capacity change from 0 to 32768 [pid 5613] ioctl(4, LOOP_CLR_FD) = 0 [pid 5613] close(4) = 0 [pid 5613] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5613] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5613] exit_group(0) = ? [pid 5613] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5613, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./7/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./7/file1") = 0 umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./7/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./7") = 0 mkdir("./8", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5614 attached [pid 5614] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... clone resumed>, child_tidptr=0x55557174d6d0) = 5614 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5614] <... set_robust_list resumed>) = 0 [pid 5614] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5614] chdir("./8") = 0 [pid 5614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5614] setpgid(0, 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5614] <... setpgid resumed>) = 0 [pid 5614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5614] write(3, "1000", 4) = 4 [pid 5614] close(3) = 0 [pid 5614] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5614] write(1, "executing program\n", 18) = 18 executing program [pid 5614] memfd_create("syzkaller", 0) = 3 [pid 5614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5614] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5614] munmap(0x7fd81b891000, 138412032) = 0 [pid 5614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5614] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5614] close(3) = 0 [pid 5614] close(4) = 0 [pid 5614] mkdir("./file1", 0777) = 0 [pid 5614] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5614] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5614] chdir("./file1") = 0 [pid 5614] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [ 104.837152][ T5614] loop0: detected capacity change from 0 to 32768 [pid 5614] ioctl(4, LOOP_CLR_FD) = 0 [pid 5614] close(4) = 0 [pid 5614] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5614] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5614] exit_group(0) = ? [pid 5614] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5614, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./8/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./8/file1") = 0 umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./8/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./8") = 0 mkdir("./9", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5616 attached , child_tidptr=0x55557174d6d0) = 5616 [pid 5616] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5616] chdir("./9") = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5616] setpgid(0, 0) = 0 [pid 5616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5616] write(3, "1000", 4) = 4 [pid 5616] close(3) = 0 [pid 5616] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5616] write(1, "executing program\n", 18) = 18 executing program [pid 5616] memfd_create("syzkaller", 0) = 3 [pid 5616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5616] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5616] munmap(0x7fd81b891000, 138412032) = 0 [pid 5616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5616] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5616] close(3) = 0 [pid 5616] close(4) = 0 [pid 5616] mkdir("./file1", 0777) = 0 [pid 5616] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5616] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5616] chdir("./file1") = 0 [pid 5616] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5616] ioctl(4, LOOP_CLR_FD) = 0 [ 105.342827][ T5616] loop0: detected capacity change from 0 to 32768 [pid 5616] close(4) = 0 [pid 5616] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5616] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5616] exit_group(0) = ? [pid 5616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5616, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./9/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./9/file1") = 0 umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./9/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./9") = 0 mkdir("./10", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5617 attached , child_tidptr=0x55557174d6d0) = 5617 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5617] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5617] chdir("./10") = 0 [pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5617] setpgid(0, 0) = 0 [pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5617] write(3, "1000", 4) = 4 [pid 5617] close(3) = 0 [pid 5617] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5617] write(1, "executing program\n", 18) = 18 executing program [pid 5617] memfd_create("syzkaller", 0) = 3 [pid 5617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5617] munmap(0x7fd81b891000, 138412032) = 0 [pid 5617] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5617] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5617] close(3) = 0 [pid 5617] close(4) = 0 [pid 5617] mkdir("./file1", 0777) = 0 [pid 5617] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5617] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5617] chdir("./file1") = 0 [pid 5617] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5617] ioctl(4, LOOP_CLR_FD) = 0 [pid 5617] close(4) = 0 [pid 5617] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5617] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5617] exit_group(0) = ? [pid 5617] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5617, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 105.866093][ T5617] loop0: detected capacity change from 0 to 32768 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./10/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./10/file1") = 0 umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./10/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./10") = 0 mkdir("./11", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5618 attached , child_tidptr=0x55557174d6d0) = 5618 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5618] chdir("./11") = 0 [pid 5618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5618] setpgid(0, 0) = 0 [pid 5618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5618] write(3, "1000", 4) = 4 [pid 5618] close(3) = 0 [pid 5618] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5618] write(1, "executing program\n", 18) = 18 [pid 5618] memfd_create("syzkaller", 0) = 3 [pid 5618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5618] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5618] munmap(0x7fd81b891000, 138412032) = 0 [pid 5618] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5618] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5618] close(3) = 0 [pid 5618] close(4) = 0 [pid 5618] mkdir("./file1", 0777) = 0 [pid 5618] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5618] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5618] chdir("./file1") = 0 [pid 5618] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5618] ioctl(4, LOOP_CLR_FD) = 0 [pid 5618] close(4) = 0 [pid 5618] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5618] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5618] exit_group(0) = ? [pid 5618] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5618, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [ 106.318574][ T5618] loop0: detected capacity change from 0 to 32768 umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./11/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./11/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./11/file1") = 0 umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./11/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./11") = 0 mkdir("./12", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5619 attached , child_tidptr=0x55557174d6d0) = 5619 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5619] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5619] <... set_robust_list resumed>) = 0 [pid 5619] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5619] chdir("./12") = 0 [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5619] setpgid(0, 0) = 0 [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5619] write(3, "1000", 4) = 4 [pid 5619] close(3) = 0 [pid 5619] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5619] write(1, "executing program\n", 18) = 18 [pid 5619] memfd_create("syzkaller", 0) = 3 [pid 5619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5619] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5619] munmap(0x7fd81b891000, 138412032) = 0 [pid 5619] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5619] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5619] close(3) = 0 [pid 5619] close(4) = 0 [pid 5619] mkdir("./file1", 0777) = 0 [pid 5619] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5619] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5619] chdir("./file1") = 0 [pid 5619] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5619] ioctl(4, LOOP_CLR_FD) = 0 [pid 5619] close(4) = 0 [pid 5619] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5619] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5619] exit_group(0) = ? [pid 5619] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5619, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=17 /* 0.17 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [ 106.804921][ T5619] loop0: detected capacity change from 0 to 32768 umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./12/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./12/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./12/file1") = 0 umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./12/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./12") = 0 mkdir("./13", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557174d6d0) = 5620 rt_sigprocmask(SIG_SETMASK, []ci2-upstream-fs/strace-static-x86_64: Process 5620 attached , NULL, 8) = 0 [pid 5620] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5620] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5620] chdir("./13") = 0 [pid 5620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5620] setpgid(0, 0) = 0 [pid 5620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5620] write(3, "1000", 4) = 4 [pid 5620] close(3) = 0 [pid 5620] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5620] write(1, "executing program\n", 18) = 18 executing program [pid 5620] memfd_create("syzkaller", 0) = 3 [pid 5620] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5620] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5620] munmap(0x7fd81b891000, 138412032) = 0 [pid 5620] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5620] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5620] close(3) = 0 [pid 5620] close(4) = 0 [pid 5620] mkdir("./file1", 0777) = 0 [pid 5620] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5620] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5620] chdir("./file1") = 0 [pid 5620] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5620] ioctl(4, LOOP_CLR_FD) = 0 [pid 5620] close(4) = 0 [pid 5620] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [ 107.283472][ T5620] loop0: detected capacity change from 0 to 32768 [pid 5620] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5620] exit_group(0) = ? [pid 5620] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5620, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=19 /* 0.19 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./13/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./13/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./13/file1") = 0 umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./13/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./13") = 0 mkdir("./14", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5621 attached , child_tidptr=0x55557174d6d0) = 5621 [pid 5621] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5621] <... set_robust_list resumed>) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5621] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5621] chdir("./14") = 0 [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5621] setpgid(0, 0) = 0 [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5621] write(3, "1000", 4) = 4 [pid 5621] close(3) = 0 [pid 5621] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5621] write(1, "executing program\n", 18) = 18 [pid 5621] memfd_create("syzkaller", 0) = 3 [pid 5621] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5621] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5621] munmap(0x7fd81b891000, 138412032) = 0 [pid 5621] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5621] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5621] close(3) = 0 [pid 5621] close(4) = 0 [pid 5621] mkdir("./file1", 0777) = 0 [pid 5621] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5621] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5621] chdir("./file1") = 0 [pid 5621] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5621] ioctl(4, LOOP_CLR_FD) = 0 [pid 5621] close(4) = 0 [pid 5621] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5621] exit_group(0) = ? [pid 5621] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 [ 107.771416][ T5621] loop0: detected capacity change from 0 to 32768 umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./14/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./14/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./14/file1") = 0 umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./14/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./14") = 0 mkdir("./15", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5622 attached , child_tidptr=0x55557174d6d0) = 5622 [pid 5622] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] chdir("./15") = 0 [pid 5622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5622] setpgid(0, 0) = 0 [pid 5622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5622] write(3, "1000", 4) = 4 [pid 5622] close(3) = 0 [pid 5622] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5622] write(1, "executing program\n", 18) = 18 executing program [pid 5622] memfd_create("syzkaller", 0) = 3 [pid 5622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5622] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5622] munmap(0x7fd81b891000, 138412032) = 0 [pid 5622] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5622] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5622] close(3) = 0 [pid 5622] close(4) = 0 [pid 5622] mkdir("./file1", 0777) = 0 [pid 5622] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5622] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5622] chdir("./file1") = 0 [pid 5622] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5622] ioctl(4, LOOP_CLR_FD) = 0 [pid 5622] close(4) = 0 [pid 5622] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5622] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5622] exit_group(0) = ? [pid 5622] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5622, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 108.257519][ T5622] loop0: detected capacity change from 0 to 32768 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./15/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./15/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./15/file1") = 0 umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./15/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./15") = 0 mkdir("./16", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5623 attached [pid 5623] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... clone resumed>, child_tidptr=0x55557174d6d0) = 5623 [pid 5623] <... set_robust_list resumed>) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5623] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5623] chdir("./16") = 0 [pid 5623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5623] setpgid(0, 0) = 0 [pid 5623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "1000", 4) = 4 [pid 5623] close(3) = 0 [pid 5623] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5623] write(1, "executing program\n", 18) = 18 [pid 5623] memfd_create("syzkaller", 0) = 3 [pid 5623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5623] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5623] munmap(0x7fd81b891000, 138412032) = 0 [pid 5623] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5623] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5623] close(3) = 0 [pid 5623] close(4) = 0 [pid 5623] mkdir("./file1", 0777) = 0 [pid 5623] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5623] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5623] chdir("./file1") = 0 [pid 5623] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5623] ioctl(4, LOOP_CLR_FD) = 0 [pid 5623] close(4) = 0 [pid 5623] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5623] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5623] exit_group(0) = ? [pid 5623] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5623, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 108.705881][ T5623] loop0: detected capacity change from 0 to 32768 openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./16/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./16/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./16/file1") = 0 umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./16/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./16") = 0 mkdir("./17", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5624 attached , child_tidptr=0x55557174d6d0) = 5624 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5624] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5624] <... set_robust_list resumed>) = 0 [pid 5624] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5624] chdir("./17") = 0 [pid 5624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5624] setpgid(0, 0) = 0 [pid 5624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "1000", 4) = 4 [pid 5624] close(3) = 0 [pid 5624] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5624] write(1, "executing program\n", 18) = 18 executing program [pid 5624] memfd_create("syzkaller", 0) = 3 [pid 5624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5624] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5624] munmap(0x7fd81b891000, 138412032) = 0 [pid 5624] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5624] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5624] close(3) = 0 [pid 5624] close(4) = 0 [pid 5624] mkdir("./file1", 0777) = 0 [pid 5624] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5624] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5624] chdir("./file1") = 0 [pid 5624] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5624] ioctl(4, LOOP_CLR_FD) = 0 [pid 5624] close(4) = 0 [pid 5624] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5624] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5624] exit_group(0) = ? [pid 5624] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5624, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [ 109.195875][ T5624] loop0: detected capacity change from 0 to 32768 umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./17/file1") = 0 umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17") = 0 mkdir("./18", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5625 attached [pid 5625] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... clone resumed>, child_tidptr=0x55557174d6d0) = 5625 [pid 5625] <... set_robust_list resumed>) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] chdir("./18") = 0 [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5625] setpgid(0, 0) = 0 [pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1000", 4) = 4 [pid 5625] close(3) = 0 [pid 5625] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5625] write(1, "executing program\n", 18) = 18 executing program [pid 5625] memfd_create("syzkaller", 0) = 3 [pid 5625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5625] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5625] munmap(0x7fd81b891000, 138412032) = 0 [pid 5625] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5625] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5625] close(3) = 0 [pid 5625] close(4) = 0 [pid 5625] mkdir("./file1", 0777) = 0 [pid 5625] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5625] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5625] chdir("./file1") = 0 [pid 5625] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5625] ioctl(4, LOOP_CLR_FD) = 0 [pid 5625] close(4) = 0 [pid 5625] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5625] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [ 109.691951][ T5625] loop0: detected capacity change from 0 to 32768 [pid 5625] exit_group(0) = ? [pid 5625] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5625, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./18/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./18/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./18/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./18/file1") = 0 umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18") = 0 mkdir("./19", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5626 attached , child_tidptr=0x55557174d6d0) = 5626 [pid 5626] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] <... set_robust_list resumed>) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5626] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5626] chdir("./19") = 0 [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5626] setpgid(0, 0) = 0 [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5626] write(3, "1000", 4) = 4 [pid 5626] close(3) = 0 [pid 5626] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5626] write(1, "executing program\n", 18) = 18 executing program [pid 5626] memfd_create("syzkaller", 0) = 3 [pid 5626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5626] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5626] munmap(0x7fd81b891000, 138412032) = 0 [pid 5626] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5626] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5626] close(3) = 0 [pid 5626] close(4) = 0 [pid 5626] mkdir("./file1", 0777) = 0 [pid 5626] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5626] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5626] chdir("./file1") = 0 [pid 5626] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5626] ioctl(4, LOOP_CLR_FD) = 0 [pid 5626] close(4) = 0 [pid 5626] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5626] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5626] exit_group(0) = ? [pid 5626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5626, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [ 110.206295][ T5626] loop0: detected capacity change from 0 to 32768 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./19/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./19/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./19/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./19/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./19/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./19/file1") = 0 umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./19/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./19") = 0 mkdir("./20", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5627 attached [pid 5627] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... clone resumed>, child_tidptr=0x55557174d6d0) = 5627 [pid 5627] <... set_robust_list resumed>) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] chdir("./20") = 0 [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5627] setpgid(0, 0) = 0 [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5627] write(3, "1000", 4) = 4 [pid 5627] close(3) = 0 [pid 5627] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5627] write(1, "executing program\n", 18) = 18 [pid 5627] memfd_create("syzkaller", 0) = 3 [pid 5627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 executing program [pid 5627] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5627] munmap(0x7fd81b891000, 138412032) = 0 [pid 5627] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5627] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5627] close(3) = 0 [pid 5627] close(4) = 0 [pid 5627] mkdir("./file1", 0777) = 0 [pid 5627] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5627] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5627] chdir("./file1") = 0 [pid 5627] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5627] ioctl(4, LOOP_CLR_FD) = 0 [pid 5627] close(4) = 0 [pid 5627] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5627] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5627] exit_group(0) = ? [pid 5627] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5627, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./20/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./20/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./20/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./20/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./20/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./20/file1") = 0 umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./20/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./20") = 0 mkdir("./21", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5628 attached [pid 5628] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... clone resumed>, child_tidptr=0x55557174d6d0) = 5628 [pid 5628] <... set_robust_list resumed>) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5628] chdir("./21") = 0 [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5628] setpgid(0, 0) = 0 [pid 5628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5628] write(3, "1000", 4) = 4 [pid 5628] close(3) = 0 [pid 5628] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5628] write(1, "executing program\n", 18) = 18 executing program [pid 5628] memfd_create("syzkaller", 0) = 3 [pid 5628] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5628] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5628] munmap(0x7fd81b891000, 138412032) = 0 [pid 5628] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5628] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5628] close(3) = 0 [pid 5628] close(4) = 0 [pid 5628] mkdir("./file1", 0777) = 0 [pid 5628] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5628] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5628] chdir("./file1") = 0 [pid 5628] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5628] ioctl(4, LOOP_CLR_FD) = 0 [pid 5628] close(4) = 0 [pid 5628] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5628] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5628] exit_group(0) = ? [pid 5628] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5628, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [ 111.133177][ T5628] set_capacity_and_notify: 1 callbacks suppressed [ 111.133199][ T5628] loop0: detected capacity change from 0 to 32768 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./21/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./21/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./21/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./21/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./21/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./21/file1") = 0 umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./21/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./21") = 0 mkdir("./22", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5629 attached , child_tidptr=0x55557174d6d0) = 5629 [pid 5629] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] <... set_robust_list resumed>) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5629] chdir("./22") = 0 [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5629] setpgid(0, 0) = 0 [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5629] write(3, "1000", 4) = 4 [pid 5629] close(3) = 0 [pid 5629] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5629] write(1, "executing program\n", 18) = 18 [pid 5629] memfd_create("syzkaller", 0) = 3 [pid 5629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 executing program [pid 5629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5629] munmap(0x7fd81b891000, 138412032) = 0 [pid 5629] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5629] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5629] close(3) = 0 [pid 5629] close(4) = 0 [pid 5629] mkdir("./file1", 0777) = 0 [ 111.632079][ T5629] loop0: detected capacity change from 0 to 32768 [pid 5629] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5629] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5629] chdir("./file1") = 0 [pid 5629] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5629] ioctl(4, LOOP_CLR_FD) = 0 [pid 5629] close(4) = 0 [pid 5629] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5629] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5629] exit_group(0) = ? [pid 5629] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5629, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./22/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./22/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./22/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./22/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./22/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./22/file1") = 0 umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./22/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./22") = 0 mkdir("./23", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5630 attached , child_tidptr=0x55557174d6d0) = 5630 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5630] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] <... set_robust_list resumed>) = 0 [pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5630] chdir("./23") = 0 [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5630] setpgid(0, 0) = 0 [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5630] write(3, "1000", 4) = 4 [pid 5630] close(3) = 0 [pid 5630] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5630] write(1, "executing program\n", 18) = 18 executing program [pid 5630] memfd_create("syzkaller", 0) = 3 [pid 5630] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5630] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5630] munmap(0x7fd81b891000, 138412032) = 0 [pid 5630] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5630] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5630] close(3) = 0 [pid 5630] close(4) = 0 [pid 5630] mkdir("./file1", 0777) = 0 [pid 5630] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5630] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5630] chdir("./file1") = 0 [pid 5630] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5630] ioctl(4, LOOP_CLR_FD) = 0 [pid 5630] close(4) = 0 [pid 5630] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5630] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5630] exit_group(0) = ? [pid 5630] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5630, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 112.137025][ T5630] loop0: detected capacity change from 0 to 32768 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./23/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./23/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./23/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./23/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./23/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./23/file1") = 0 umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./23/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./23") = 0 mkdir("./24", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5631 attached , child_tidptr=0x55557174d6d0) = 5631 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5631] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5631] chdir("./24") = 0 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5631] setpgid(0, 0) = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5631] write(3, "1000", 4) = 4 [pid 5631] close(3) = 0 [pid 5631] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5631] write(1, "executing program\n", 18) = 18 executing program [pid 5631] memfd_create("syzkaller", 0) = 3 [pid 5631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5631] munmap(0x7fd81b891000, 138412032) = 0 [pid 5631] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5631] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5631] close(3) = 0 [pid 5631] close(4) = 0 [pid 5631] mkdir("./file1", 0777) = 0 [pid 5631] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5631] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5631] chdir("./file1") = 0 [pid 5631] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [ 112.617842][ T5631] loop0: detected capacity change from 0 to 32768 [pid 5631] ioctl(4, LOOP_CLR_FD) = 0 [pid 5631] close(4) = 0 [pid 5631] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5631] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5631] exit_group(0) = ? [pid 5631] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./24/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./24/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./24/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./24/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./24/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./24/file1") = 0 umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./24/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./24") = 0 mkdir("./25", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5632 attached , child_tidptr=0x55557174d6d0) = 5632 [pid 5632] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5632] <... set_robust_list resumed>) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5632] chdir("./25") = 0 [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5632] setpgid(0, 0) = 0 [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5632] write(3, "1000", 4) = 4 [pid 5632] close(3) = 0 [pid 5632] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5632] write(1, "executing program\n", 18) = 18 executing program [pid 5632] memfd_create("syzkaller", 0) = 3 [pid 5632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5632] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5632] munmap(0x7fd81b891000, 138412032) = 0 [pid 5632] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5632] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5632] close(3) = 0 [pid 5632] close(4) = 0 [pid 5632] mkdir("./file1", 0777) = 0 [pid 5632] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5632] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5632] chdir("./file1") = 0 [pid 5632] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5632] ioctl(4, LOOP_CLR_FD) = 0 [pid 5632] close(4) = 0 [pid 5632] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5632] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5632] exit_group(0) = ? [pid 5632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5632, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [ 113.256843][ T5632] loop0: detected capacity change from 0 to 32768 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./25/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./25/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./25/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./25/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./25/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./25/file1") = 0 umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./25/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./25") = 0 mkdir("./26", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5633 attached , child_tidptr=0x55557174d6d0) = 5633 [pid 5633] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] chdir("./26") = 0 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5633] setpgid(0, 0) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5633] write(3, "1000", 4) = 4 [pid 5633] close(3) = 0 [pid 5633] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5633] write(1, "executing program\n", 18) = 18 executing program [pid 5633] memfd_create("syzkaller", 0) = 3 [pid 5633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5633] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5633] munmap(0x7fd81b891000, 138412032) = 0 [pid 5633] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5633] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5633] close(3) = 0 [pid 5633] close(4) = 0 [pid 5633] mkdir("./file1", 0777) = 0 [pid 5633] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5633] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5633] chdir("./file1") = 0 [pid 5633] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5633] ioctl(4, LOOP_CLR_FD) = 0 [pid 5633] close(4) = 0 [pid 5633] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5633] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5633] exit_group(0) = ? [pid 5633] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [ 113.908327][ T5633] loop0: detected capacity change from 0 to 32768 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./26/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./26/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./26/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./26/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./26/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./26/file1") = 0 umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./26/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./26") = 0 mkdir("./27", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5634 attached , child_tidptr=0x55557174d6d0) = 5634 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5634] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5634] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5634] chdir("./27") = 0 [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5634] setpgid(0, 0) = 0 [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5634] write(3, "1000", 4) = 4 [pid 5634] close(3) = 0 [pid 5634] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5634] write(1, "executing program\n", 18) = 18 executing program [pid 5634] memfd_create("syzkaller", 0) = 3 [pid 5634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5634] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5634] munmap(0x7fd81b891000, 138412032) = 0 [pid 5634] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5634] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5634] close(3) = 0 [pid 5634] close(4) = 0 [pid 5634] mkdir("./file1", 0777) = 0 [pid 5634] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5634] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5634] chdir("./file1") = 0 [pid 5634] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5634] ioctl(4, LOOP_CLR_FD) = 0 [pid 5634] close(4) = 0 [pid 5634] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5634] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5634] exit_group(0) = ? [pid 5634] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5634, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=15 /* 0.15 s */} --- umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 [ 114.410345][ T5634] loop0: detected capacity change from 0 to 32768 umount2("./27/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./27/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./27/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./27/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./27/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./27/file1") = 0 umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./27/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./27") = 0 mkdir("./28", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5635 attached , child_tidptr=0x55557174d6d0) = 5635 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5635] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5635] chdir("./28") = 0 [pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5635] setpgid(0, 0) = 0 [pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5635] write(3, "1000", 4) = 4 [pid 5635] close(3) = 0 [pid 5635] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5635] write(1, "executing program\n", 18) = 18 [pid 5635] memfd_create("syzkaller", 0) = 3 [pid 5635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5635] munmap(0x7fd81b891000, 138412032) = 0 [pid 5635] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5635] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5635] close(3) = 0 [pid 5635] close(4) = 0 [pid 5635] mkdir("./file1", 0777) = 0 [pid 5635] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5635] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5635] chdir("./file1") = 0 [pid 5635] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5635] ioctl(4, LOOP_CLR_FD) = 0 [pid 5635] close(4) = 0 [pid 5635] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5635] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5635] exit_group(0) = ? [pid 5635] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5635, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 114.903850][ T5635] loop0: detected capacity change from 0 to 32768 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./28/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./28/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./28/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./28/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./28/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./28/file1") = 0 umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./28/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./28") = 0 mkdir("./29", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5636 attached , child_tidptr=0x55557174d6d0) = 5636 [pid 5636] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5636] <... set_robust_list resumed>) = 0 [pid 5636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5636] chdir("./29") = 0 [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5636] setpgid(0, 0) = 0 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5636] write(3, "1000", 4) = 4 [pid 5636] close(3) = 0 [pid 5636] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5636] write(1, "executing program\n", 18) = 18 executing program [pid 5636] memfd_create("syzkaller", 0) = 3 [pid 5636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5636] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5636] munmap(0x7fd81b891000, 138412032) = 0 [pid 5636] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5636] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5636] close(3) = 0 [pid 5636] close(4) = 0 [pid 5636] mkdir("./file1", 0777) = 0 [pid 5636] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5636] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5636] chdir("./file1") = 0 [pid 5636] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5636] ioctl(4, LOOP_CLR_FD) = 0 [pid 5636] close(4) = 0 [pid 5636] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5636] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5636] exit_group(0) = ? [pid 5636] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5636, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [ 115.373979][ T5636] loop0: detected capacity change from 0 to 32768 umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./29/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./29/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./29/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./29/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./29/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./29/file1") = 0 umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./29/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./29") = 0 mkdir("./30", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5637 attached , child_tidptr=0x55557174d6d0) = 5637 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5637] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5637] chdir("./30") = 0 [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5637] setpgid(0, 0) = 0 [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5637] write(3, "1000", 4) = 4 [pid 5637] close(3) = 0 [pid 5637] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5637] write(1, "executing program\n", 18) = 18 executing program [pid 5637] memfd_create("syzkaller", 0) = 3 [pid 5637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5637] munmap(0x7fd81b891000, 138412032) = 0 [pid 5637] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5637] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5637] close(3) = 0 [pid 5637] close(4) = 0 [pid 5637] mkdir("./file1", 0777) = 0 [pid 5637] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5637] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [ 115.823190][ T5637] loop0: detected capacity change from 0 to 32768 [pid 5637] chdir("./file1") = 0 [pid 5637] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5637] ioctl(4, LOOP_CLR_FD) = 0 [pid 5637] close(4) = 0 [pid 5637] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5637] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5637] exit_group(0) = ? [pid 5637] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5637, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./30/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./30/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./30/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./30/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./30/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./30/file1") = 0 umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./30/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./30") = 0 mkdir("./31", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5638 attached , child_tidptr=0x55557174d6d0) = 5638 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5638] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5638] chdir("./31") = 0 [pid 5638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5638] setpgid(0, 0) = 0 [pid 5638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5638] write(3, "1000", 4) = 4 [pid 5638] close(3) = 0 [pid 5638] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5638] write(1, "executing program\n", 18) = 18 executing program [pid 5638] memfd_create("syzkaller", 0) = 3 [pid 5638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5638] munmap(0x7fd81b891000, 138412032) = 0 [pid 5638] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5638] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5638] close(3) = 0 [pid 5638] close(4) = 0 [pid 5638] mkdir("./file1", 0777) = 0 [pid 5638] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5638] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5638] chdir("./file1") = 0 [pid 5638] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5638] ioctl(4, LOOP_CLR_FD) = 0 [pid 5638] close(4) = 0 [pid 5638] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5638] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5638] exit_group(0) = ? [pid 5638] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5638, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 [ 116.349806][ T5638] loop0: detected capacity change from 0 to 32768 umount2("./31/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./31/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./31/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./31/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./31/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./31/file1") = 0 umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./31/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./31") = 0 mkdir("./32", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5639 attached , child_tidptr=0x55557174d6d0) = 5639 [pid 5639] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5639] <... set_robust_list resumed>) = 0 [pid 5639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5639] chdir("./32") = 0 [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5639] setpgid(0, 0) = 0 [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5639] write(3, "1000", 4) = 4 [pid 5639] close(3) = 0 [pid 5639] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5639] write(1, "executing program\n", 18) = 18 executing program [pid 5639] memfd_create("syzkaller", 0) = 3 [pid 5639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5639] munmap(0x7fd81b891000, 138412032) = 0 [pid 5639] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5639] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5639] close(3) = 0 [pid 5639] close(4) = 0 [pid 5639] mkdir("./file1", 0777) = 0 [pid 5639] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5639] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5639] chdir("./file1") = 0 [pid 5639] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5639] ioctl(4, LOOP_CLR_FD) = 0 [pid 5639] close(4) = 0 [pid 5639] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5639] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5639] exit_group(0) = ? [ 116.830450][ T5639] loop0: detected capacity change from 0 to 32768 [pid 5639] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5639, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./32/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./32/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./32/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./32/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./32/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./32/file1") = 0 umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./32/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./32") = 0 mkdir("./33", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5640 attached , child_tidptr=0x55557174d6d0) = 5640 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5640] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5640] <... set_robust_list resumed>) = 0 [pid 5640] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5640] chdir("./33") = 0 [pid 5640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5640] setpgid(0, 0) = 0 [pid 5640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5640] write(3, "1000", 4) = 4 [pid 5640] close(3) = 0 [pid 5640] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5640] write(1, "executing program\n", 18) = 18 executing program [pid 5640] memfd_create("syzkaller", 0) = 3 [pid 5640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5640] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5640] munmap(0x7fd81b891000, 138412032) = 0 [pid 5640] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5640] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5640] close(3) = 0 [pid 5640] close(4) = 0 [pid 5640] mkdir("./file1", 0777) = 0 [pid 5640] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5640] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5640] chdir("./file1") = 0 [pid 5640] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5640] ioctl(4, LOOP_CLR_FD) = 0 [pid 5640] close(4) = 0 [pid 5640] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5640] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5640] exit_group(0) = ? [pid 5640] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5640, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [ 117.318389][ T5640] loop0: detected capacity change from 0 to 32768 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./33/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./33/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./33/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./33/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./33/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./33/file1") = 0 umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./33/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./33") = 0 mkdir("./34", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5641 attached , child_tidptr=0x55557174d6d0) = 5641 [pid 5641] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] <... set_robust_list resumed>) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5641] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5641] chdir("./34") = 0 [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5641] setpgid(0, 0) = 0 [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5641] write(3, "1000", 4) = 4 [pid 5641] close(3) = 0 [pid 5641] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5641] write(1, "executing program\n", 18) = 18 [pid 5641] memfd_create("syzkaller", 0) = 3 [pid 5641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5641] munmap(0x7fd81b891000, 138412032) = 0 [pid 5641] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5641] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5641] close(3) = 0 [pid 5641] close(4) = 0 [pid 5641] mkdir("./file1", 0777) = 0 [pid 5641] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5641] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5641] chdir("./file1") = 0 [pid 5641] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5641] ioctl(4, LOOP_CLR_FD) = 0 [pid 5641] close(4) = 0 [pid 5641] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5641] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5641] exit_group(0) = ? [pid 5641] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5641, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [ 117.817558][ T5641] loop0: detected capacity change from 0 to 32768 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./34/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./34/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./34/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./34/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./34/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./34/file1") = 0 umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./34/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./34") = 0 mkdir("./35", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5642 attached , child_tidptr=0x55557174d6d0) = 5642 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5642] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5642] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5642] chdir("./35") = 0 [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5642] setpgid(0, 0) = 0 [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5642] write(3, "1000", 4) = 4 [pid 5642] close(3) = 0 [pid 5642] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5642] write(1, "executing program\n", 18) = 18 executing program [pid 5642] memfd_create("syzkaller", 0) = 3 [pid 5642] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5642] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5642] munmap(0x7fd81b891000, 138412032) = 0 [pid 5642] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5642] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5642] close(3) = 0 [pid 5642] close(4) = 0 [pid 5642] mkdir("./file1", 0777) = 0 [pid 5642] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5642] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5642] chdir("./file1") = 0 [pid 5642] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5642] ioctl(4, LOOP_CLR_FD) = 0 [pid 5642] close(4) = 0 [pid 5642] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5642] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5642] exit_group(0) = ? [pid 5642] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5642, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 [ 118.340915][ T5642] loop0: detected capacity change from 0 to 32768 umount2("./35/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./35/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./35/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./35/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./35/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./35/file1") = 0 umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./35/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./35") = 0 mkdir("./36", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5643 attached , child_tidptr=0x55557174d6d0) = 5643 [pid 5643] set_robust_list(0x55557174d6e0, 24 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] <... set_robust_list resumed>) = 0 [pid 5643] rt_sigprocmask(SIG_SETMASK, [] [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] chdir("./36") = 0 [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5643] setpgid(0, 0) = 0 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5643] write(3, "1000", 4) = 4 [pid 5643] close(3) = 0 [pid 5643] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5643] write(1, "executing program\n", 18) = 18 [pid 5643] memfd_create("syzkaller", 0) = 3 [pid 5643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5643] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5643] munmap(0x7fd81b891000, 138412032) = 0 [pid 5643] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5643] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5643] close(3) = 0 [pid 5643] close(4) = 0 [pid 5643] mkdir("./file1", 0777) = 0 [pid 5643] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5643] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5643] chdir("./file1") = 0 [pid 5643] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5643] ioctl(4, LOOP_CLR_FD) = 0 [pid 5643] close(4) = 0 [pid 5643] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5643] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5643] exit_group(0) = ? [pid 5643] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5643, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [ 118.840113][ T5643] loop0: detected capacity change from 0 to 32768 umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./36/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./36/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./36/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./36/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./36/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./36/file1") = 0 umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./36/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./36") = 0 mkdir("./37", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5644 attached , child_tidptr=0x55557174d6d0) = 5644 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5644] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5644] chdir("./37") = 0 [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5644] setpgid(0, 0) = 0 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5644] write(3, "1000", 4) = 4 [pid 5644] close(3) = 0 [pid 5644] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5644] write(1, "executing program\n", 18) = 18 executing program [pid 5644] memfd_create("syzkaller", 0) = 3 [pid 5644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5644] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5644] munmap(0x7fd81b891000, 138412032) = 0 [pid 5644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5644] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5644] close(3) = 0 [pid 5644] close(4) = 0 [pid 5644] mkdir("./file1", 0777) = 0 [pid 5644] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5644] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5644] chdir("./file1") = 0 [pid 5644] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5644] ioctl(4, LOOP_CLR_FD) = 0 [pid 5644] close(4) = 0 [pid 5644] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5644] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5644] exit_group(0) = ? [pid 5644] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5644, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [ 119.315273][ T5644] loop0: detected capacity change from 0 to 32768 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./37/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./37/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./37/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./37/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./37/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./37/file1") = 0 umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./37/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./37") = 0 mkdir("./38", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5645 attached [pid 5645] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... clone resumed>, child_tidptr=0x55557174d6d0) = 5645 [pid 5645] <... set_robust_list resumed>) = 0 [pid 5645] rt_sigprocmask(SIG_SETMASK, [] [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] chdir("./38") = 0 [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5645] setpgid(0, 0) = 0 [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5645] write(3, "1000", 4) = 4 [pid 5645] close(3) = 0 [pid 5645] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5645] write(1, "executing program\n", 18) = 18 [pid 5645] memfd_create("syzkaller", 0) = 3 [pid 5645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5645] munmap(0x7fd81b891000, 138412032) = 0 [pid 5645] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5645] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5645] close(3) = 0 [pid 5645] close(4) = 0 [pid 5645] mkdir("./file1", 0777) = 0 [pid 5645] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5645] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5645] chdir("./file1") = 0 [pid 5645] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5645] ioctl(4, LOOP_CLR_FD) = 0 [pid 5645] close(4) = 0 [pid 5645] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5645] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [ 119.833432][ T5645] loop0: detected capacity change from 0 to 32768 [pid 5645] exit_group(0) = ? [pid 5645] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5645, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./38/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./38/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./38/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./38/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./38/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./38/file1") = 0 umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./38/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./38") = 0 mkdir("./39", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5646 attached , child_tidptr=0x55557174d6d0) = 5646 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5646] set_robust_list(0x55557174d6e0, 24) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5646] chdir("./39") = 0 [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5646] setpgid(0, 0) = 0 [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5646] write(3, "1000", 4) = 4 [pid 5646] close(3) = 0 [pid 5646] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5646] write(1, "executing program\n", 18) = 18 executing program [pid 5646] memfd_create("syzkaller", 0) = 3 [pid 5646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5646] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5646] munmap(0x7fd81b891000, 138412032) = 0 [pid 5646] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5646] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5646] close(3) = 0 [pid 5646] close(4) = 0 [pid 5646] mkdir("./file1", 0777) = 0 [pid 5646] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5646] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5646] chdir("./file1") = 0 [pid 5646] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [ 120.333411][ T5646] loop0: detected capacity change from 0 to 32768 [pid 5646] ioctl(4, LOOP_CLR_FD) = 0 [pid 5646] close(4) = 0 [pid 5646] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5646] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5646] exit_group(0) = ? [pid 5646] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5646, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 umount2("./39/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./39/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./39/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./39/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./39/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x5555717567d0 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555717567d0 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./39/file1") = 0 umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./39/binderfs") = 0 getdents64(3, 0x55557174e790 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./39") = 0 mkdir("./40", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5647 attached [pid 5647] set_robust_list(0x55557174d6e0, 24 [pid 5600] <... clone resumed>, child_tidptr=0x55557174d6d0) = 5647 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5600] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] chdir("./40") = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5647] setpgid(0, 0) = 0 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5647] write(3, "1000", 4) = 4 [pid 5647] close(3) = 0 [pid 5647] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5647] write(1, "executing program\n", 18) = 18 executing program [pid 5647] memfd_create("syzkaller", 0) = 3 [pid 5647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd81b891000 [pid 5647] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5647] munmap(0x7fd81b891000, 138412032) = 0 [pid 5647] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5647] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5647] close(3) = 0 [pid 5647] close(4) = 0 [pid 5647] mkdir("./file1", 0777) = 0 [pid 5647] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,nointegrity,iocharset=iso8859-14,errors=continue,discard,errors=remount-ro,integrit"...) = 0 [pid 5647] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5647] chdir("./file1") = 0 [pid 5647] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5647] ioctl(4, LOOP_CLR_FD) = 0 [pid 5647] close(4) = 0 [pid 5647] mount("/dev/nbd0", "./cgroup", NULL, MS_NODEV|MS_REC|MS_SILENT|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, NULL) = -1 ENOENT (No such file or directory) [pid 5647] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [ 120.844524][ T5647] loop0: detected capacity change from 0 to 32768 [pid 5647] exit_group(0) = ? [pid 5647] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557174e790 /* 4 entries */, 32768) = 112 [ 120.989171][ C1] ================================================================== [ 120.989192][ C1] BUG: KASAN: slab-use-after-free in lbmIODone+0x130e/0x16b0 [ 120.989253][ C1] Read of size 4 at addr ffff8880265a6c08 by task ktimers/1/29 [ 120.989273][ C1] [ 120.989299][ C1] CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 120.989331][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 120.989357][ C1] Call Trace: [ 120.989366][ C1] [ 120.989376][ C1] dump_stack_lvl+0xe8/0x150 [ 120.989414][ C1] print_address_description+0x55/0x1e0 [ 120.989450][ C1] ? lbmIODone+0x130e/0x16b0 [ 120.989472][ C1] print_report+0x58/0x70 [ 120.989504][ C1] kasan_report+0x117/0x150 [ 120.989528][ C1] ? lbmIODone+0x130e/0x16b0 [ 120.989555][ C1] lbmIODone+0x130e/0x16b0 [ 120.989577][ C1] ? blkg_put+0x22/0x240 [ 120.989606][ C1] ? blkg_put+0x22/0x240 [ 120.989634][ C1] ? blkg_put+0x18d/0x240 [ 120.989663][ C1] ? bio_endio+0x984/0xac0 [ 120.989699][ C1] blk_update_request+0x57b/0xe50 [ 120.989742][ C1] blk_mq_end_request+0x3e/0x70 [ 120.989779][ C1] blk_done_softirq+0x10a/0x160 [ 120.989814][ C1] handle_softirqs+0x1da/0x6d0 [ 120.989853][ C1] ? smpboot_thread_fn+0x4e/0xa70 [ 120.989888][ C1] run_ktimerd+0x6a/0x100 [ 120.989925][ C1] smpboot_thread_fn+0x565/0xa70 [ 120.989967][ C1] ? smpboot_thread_fn+0x4e/0xa70 [ 120.990009][ C1] kthread+0x38b/0x470 [ 120.990033][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 120.990079][ C1] ? __pfx_kthread+0x10/0x10 [ 120.990103][ C1] ret_from_fork+0x514/0xb70 [ 120.990128][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 120.990151][ C1] ? __switch_to+0xc89/0x1420 [ 120.990187][ C1] ? __pfx_kthread+0x10/0x10 [ 120.990218][ C1] ret_from_fork_asm+0x1a/0x30 [ 120.990247][ C1] [ 120.990256][ C1] [ 120.990262][ C1] Allocated by task 5647: [ 120.990273][ C1] kasan_save_track+0x3e/0x80 [ 120.990305][ C1] __kasan_kmalloc+0x93/0xb0 [ 120.990338][ C1] __kmalloc_cache_noprof+0x3d5/0x680 [ 120.990370][ C1] lmLogInit+0x3e5/0x1a20 [ 120.990404][ C1] lmLogOpen+0x4e3/0xf90 [ 120.990438][ C1] jfs_mount_rw+0xf3/0x670 [ 120.990469][ C1] jfs_fill_super+0x769/0xda0 [ 120.990494][ C1] get_tree_bdev_flags+0x430/0x4f0 [ 120.990523][ C1] vfs_get_tree+0x92/0x2a0 [ 120.990550][ C1] do_new_mount+0x319/0xdc0 [ 120.990571][ C1] __se_sys_mount+0x31d/0x420 [ 120.990594][ C1] do_syscall_64+0x166/0x520 [ 120.990624][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 120.990647][ C1] [ 120.990653][ C1] Freed by task 5600: [ 120.990664][ C1] kasan_save_track+0x3e/0x80 [ 120.990695][ C1] kasan_save_free_info+0x40/0x50 [ 120.990720][ C1] __kasan_slab_free+0x5c/0x80 [ 120.990753][ C1] kfree+0x1c5/0x6d0 [ 120.990778][ C1] lmLogShutdown+0x456/0x850 [ 120.990795][ C1] lmLogClose+0x28c/0x530 [ 120.990813][ C1] jfs_umount+0x2da/0x3b0 [ 120.990845][ C1] jfs_put_super+0x8c/0x190 [ 120.990869][ C1] generic_shutdown_super+0x13d/0x2d0 [ 120.990892][ C1] kill_block_super+0x44/0xa0 [ 120.990919][ C1] deactivate_locked_super+0xbe/0x110 [ 120.990942][ C1] cleanup_mnt+0x3d3/0x460 [ 120.990969][ C1] task_work_run+0x1d9/0x270 [ 120.990993][ C1] ptrace_notify+0x27c/0x2b0 [ 120.991020][ C1] ptrace_report_syscall_exit+0x2d/0x50 [ 120.991042][ C1] do_syscall_64+0x4a0/0x520 [ 120.991063][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 120.991085][ C1] [ 120.991091][ C1] The buggy address belongs to the object at ffff8880265a6c00 [ 120.991091][ C1] which belongs to the cache kmalloc-256 of size 256 [ 120.991111][ C1] The buggy address is located 8 bytes inside of [ 120.991111][ C1] freed 256-byte region [ffff8880265a6c00, ffff8880265a6d00) [ 120.991135][ C1] [ 120.991141][ C1] The buggy address belongs to the physical page: [ 120.991159][ C1] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x265a6 [ 120.991182][ C1] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 120.991201][ C1] flags: 0x80000000000040(head|node=0|zone=1) [ 120.991232][ C1] page_type: f5(slab) [ 120.991271][ C1] raw: 0080000000000040 ffff88813ffbdb40 dead000000000100 dead000000000122 [ 120.991292][ C1] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 120.991316][ C1] head: 0080000000000040 ffff88813ffbdb40 dead000000000100 dead000000000122 [ 120.991337][ C1] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 120.991359][ C1] head: 0080000000000001 ffffffffffffff81 00000000ffffffff 00000000ffffffff [ 120.991379][ C1] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000002 [ 120.991392][ C1] page dumped because: kasan: bad access detected [ 120.991409][ C1] page_owner tracks the page as allocated [ 120.991417][ C1] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 7127718188 [ 120.991456][ C1] post_alloc_hook+0x1f9/0x250 [ 120.991488][ C1] get_page_from_freelist+0x2591/0x2600 [ 120.991524][ C1] __alloc_frozen_pages_noprof+0x230/0x5c0 [ 120.991561][ C1] allocate_slab+0x7d/0x620 [ 120.991585][ C1] refill_objects+0x2d8/0x350 [ 120.991610][ C1] __pcs_replace_empty_main+0x339/0x690 [ 120.991634][ C1] __kmalloc_noprof+0x54b/0x790 [ 120.991666][ C1] __tty_alloc_driver+0x16b/0x400 [ 120.991702][ C1] uart_register_driver+0xca/0x690 [ 120.991727][ C1] serial8250_init+0x84/0x160 [ 120.991762][ C1] do_one_initcall+0x250/0x870 [ 120.991797][ C1] do_initcall_level+0x10a/0x1a0 [ 120.991828][ C1] do_initcalls+0x59/0xa0 [ 120.991861][ C1] kernel_init_freeable+0x29d/0x3e0 [ 120.991896][ C1] kernel_init+0x22/0x1d0 [ 120.991923][ C1] ret_from_fork+0x514/0xb70 [ 120.991943][ C1] page_owner free stack trace missing [ 120.991952][ C1] [ 120.991957][ C1] Memory state around the buggy address: [ 120.991970][ C1] ffff8880265a6b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 120.991986][ C1] ffff8880265a6b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 120.992002][ C1] >ffff8880265a6c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 120.992015][ C1] ^ [ 120.992027][ C1] ffff8880265a6c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 120.992043][ C1] ffff8880265a6d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 120.992055][ C1] ================================================================== [ 120.992091][ C1] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 121.630166][ C1] CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 121.639736][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 121.649827][ C1] Call Trace: [ 121.653130][ C1] [ 121.656084][ C1] vpanic+0x56d/0xa60 [ 121.660097][ C1] ? rcu_is_watching+0x16/0xb0 [ 121.664899][ C1] ? __pfx_vpanic+0x10/0x10 [ 121.669428][ C1] panic+0xc5/0xd0 [ 121.673175][ C1] ? __pfx_panic+0x10/0x10 [ 121.677623][ C1] ? lbmIODone+0x130e/0x16b0 [ 121.682253][ C1] ? lbmIODone+0x130e/0x16b0 [ 121.686867][ C1] check_panic_on_warn+0x89/0xb0 [ 121.691824][ C1] ? lbmIODone+0x130e/0x16b0 [ 121.696459][ C1] end_report+0x73/0x170 [ 121.700730][ C1] ? lbmIODone+0x130e/0x16b0 [ 121.705337][ C1] kasan_report+0x128/0x150 [ 121.709870][ C1] ? lbmIODone+0x130e/0x16b0 [ 121.714518][ C1] lbmIODone+0x130e/0x16b0 [ 121.718963][ C1] ? blkg_put+0x22/0x240 [ 121.723242][ C1] ? blkg_put+0x22/0x240 [ 121.727520][ C1] ? blkg_put+0x18d/0x240 [ 121.731908][ C1] ? bio_endio+0x984/0xac0 [ 121.736356][ C1] blk_update_request+0x57b/0xe50 [ 121.741424][ C1] blk_mq_end_request+0x3e/0x70 [ 121.746307][ C1] blk_done_softirq+0x10a/0x160 [ 121.751191][ C1] handle_softirqs+0x1da/0x6d0 [ 121.755988][ C1] ? smpboot_thread_fn+0x4e/0xa70 [ 121.761041][ C1] run_ktimerd+0x6a/0x100 [ 121.765406][ C1] smpboot_thread_fn+0x565/0xa70 [ 121.770376][ C1] ? smpboot_thread_fn+0x4e/0xa70 [ 121.775449][ C1] kthread+0x38b/0x470 [ 121.779542][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 121.785044][ C1] ? __pfx_kthread+0x10/0x10 [ 121.789662][ C1] ret_from_fork+0x514/0xb70 [ 121.794300][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 121.799433][ C1] ? __switch_to+0xc89/0x1420 [ 121.804226][ C1] ? __pfx_kthread+0x10/0x10 [ 121.808835][ C1] ret_from_fork_asm+0x1a/0x30 [ 121.813623][ C1] [ 121.817258][ C1] Kernel Offset: disabled [ 121.821589][ C1] Rebooting in 86400 seconds..