ci2-android-6-12-rust/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-12-rust/syz-executor2792167998

<...>


syzkaller
syzkaller login: [   15.314234][   T36] kauditd_printk_skb: 31 callbacks suppressed
[   15.314254][   T36] audit: type=1400 audit(1792962291.100:59): avc:  denied  { transition } for  pid=233 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   15.319172][   T36] audit: type=1400 audit(1792962291.100:60): avc:  denied  { noatsecure } for  pid=233 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   15.323650][   T36] audit: type=1400 audit(1792962291.110:61): avc:  denied  { write } for  pid=233 comm="sh" path="pipe:[2479]" dev="pipefs" ino=2479 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[   15.327501][   T36] audit: type=1400 audit(1792962291.110:62): avc:  denied  { rlimitinh } for  pid=233 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   15.330535][   T36] audit: type=1400 audit(1792962291.110:63): avc:  denied  { siginh } for  pid=233 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.0.97' (ED25519) to the list of known hosts.
execve("ci2-android-6-12-rust/syz-executor2792167998", ["ci2-android-6-12-rust/syz-executor2792167998"], 0x7ffe385e00f0 /* 10 vars */) = 0
brk(NULL)                               = 0x555571838000
brk(0x555571838d40)                     = 0x555571838d40
arch_prctl(ARCH_SET_FS, 0x5555718383c0) = 0
set_tid_address(0x555571838690)         = 313
set_robust_list(0x5555718386a0, 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}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-6-12-rust/syz-executor2792167998", 4096) = 50
getrandom("\x11\xb0\x14\xfe\xac\x60\x5d\x43", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555571838d40
brk(0x555571859d40)                     = 0x555571859d40
brk(0x55557185a000)                     = 0x55557185a000
mprotect(0x7f40f2bda000, 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("\x59\x61\x32\x78\xf8\xaf\x16\x20", 8, GRND_NONBLOCK) = 8
mkdir("./syzkaller.TSBfAj", 0700)       = 0
chmod("./syzkaller.TSBfAj", 0777)       = 0
chdir("./syzkaller.TSBfAj")             = 0
unshare(CLONE_NEWPID)                   = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8)   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-android-6-12-rust/strace-static-x86_64: Process 314 attached
 <unfinished ...>
[pid   314] set_robust_list(0x5555718386a0, 24) = 0
[pid   313] <... clone resumed>, child_tidptr=0x555571838690) = 314
[pid   314] rt_sigprocmask(SIG_SETMASK, [] <unfinished ...>
[pid   313] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   314] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid   314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   314] getppid()                   = 0
[pid   314] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   314] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   314] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   314] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   314] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   314] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   314] unshare(CLONE_NEWNS)        = 0
[pid   314] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   314] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   314] unshare(CLONE_NEWCGROUP)    = 0
[pid   314] unshare(CLONE_NEWUTS)       = 0
[pid   314] unshare(CLONE_SYSVSEM)      = 0
[pid   314] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   314] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   314] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   314] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   314] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   314] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   314] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   314] getpid()                    = 1
[pid   314] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   314] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   314] unshare(CLONE_NEWNET)       = 0
[pid   314] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   314] write(3, "0 65535", 7)      = 7
[pid   314] close(3)                    = 0
[pid   314] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   314] write(3, "100000", 6)       = 6
[pid   314] close(3)                    = 0
[pid   314] mkdir("./syz-tmp", 0777)    = 0
[   25.336605][   T36] audit: type=1400 audit(1792962301.130:64): avc:  denied  { execmem } for  pid=313 comm="syz-executor279" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   25.360974][   T36] audit: type=1400 audit(1792962301.150:65): avc:  denied  { mounton } for  pid=314 comm="syz-executor279" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   314] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   314] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   314] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   314] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   314] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   314] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   314] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   314] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   314] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   314] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   314] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   314] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   314] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   314] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   314] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   314] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   314] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   314] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   314] chdir("/")                  = 0
[pid   314] umount2("./pivot", MNT_DETACH) = 0
[pid   314] chroot("./newroot")         = 0
[pid   314] chdir("/")                  = 0
[   25.403170][   T36] audit: type=1400 audit(1792962301.190:66): avc:  denied  { mounton } for  pid=314 comm="syz-executor279" path="/root/syzkaller.TSBfAj/syz-tmp" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   25.427590][   T36] audit: type=1400 audit(1792962301.190:67): avc:  denied  { mount } for  pid=314 comm="syz-executor279" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   314] mkdir("/dev/gadgetfs", 0777) = 0
[pid   314] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   314] mkdir("/dev/binderfs", 0777) = 0
[pid   314] mount("binder", "/dev/binderfs", "binder", 0, "stats=global") = 0
[pid   314] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   314] mkdir("./0", 0777)          = 0
[pid   314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   314] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555571838690) = 2
[pid   314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-6-12-rust/strace-static-x86_64: Process 315 attached
[pid   315] set_robust_list(0x5555718386a0, 24) = 0
[pid   315] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   315] chdir("./0")                = 0
[pid   315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   315] setpgid(0, 0)               = 0
[pid   315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   315] write(3, "1000", 4)         = 4
[pid   315] close(3)                    = 0
[pid   315] symlink("/dev/binderfs", "./binderfs") = 0
[pid   315] write(1, "executing program\n", 18) = 18
executing program
[pid   315] mkdir("./bus", 0127)        = 0
[   25.449782][   T36] audit: type=1400 audit(1792962301.190:68): avc:  denied  { mounton } for  pid=314 comm="syz-executor279" path="/root/syzkaller.TSBfAj/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   25.475119][   T36] audit: type=1400 audit(1792962301.190:69): avc:  denied  { mount } for  pid=314 comm="syz-executor279" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   25.491489][  T315] incfs: ino conflict with backing FS 9
[pid   315] mount(".", "./bus", "incremental-fs", MS_NOSUID|MS_REC|MS_SILENT, NULL) = 0
[pid   315] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   315] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   315] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   315] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   315] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   315] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   315] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   315] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   315] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   315] exit_group(0)               = ?
[pid   315] +++ exited with 0 +++
[pid   314] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
[pid   314] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
[pid   314] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   314] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   314] fstat(3, {st_mode=S_IFDIR|0700, st_size=120, ...}) = 0
[pid   314] getdents64(3, 0x555571839760 /* 6 entries */, 32768) = 168
[   25.497508][   T36] audit: type=1400 audit(1792962301.190:70): avc:  denied  { mounton } for  pid=314 comm="syz-executor279" path="/root/syzkaller.TSBfAj/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1
[pid   314] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   314] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   314] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   314] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   314] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   314] getdents64(4, 0x5555718417a0 /* 2 entries */, 32768) = 48
[pid   314] getdents64(4, 0x5555718417a0 /* 0 entries */, 32768) = 0
[pid   314] close(4)                    = 0
[pid   314] rmdir("./0/.incomplete")    = 0
[pid   314] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   314] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   314] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   314] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   314] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   314] getdents64(4, 0x5555718417a0 /* 2 entries */, 32768) = 48
[pid   314] getdents64(4, 0x5555718417a0 /* 0 entries */, 32768) = 0
[pid   314] close(4)                    = 0
[pid   314] rmdir("./0/.index")         = 0
[   25.529382][   T36] audit: type=1400 audit(1792962301.220:71): avc:  denied  { mounton } for  pid=314 comm="syz-executor279" path="/root/syzkaller.TSBfAj/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=1017 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   25.557575][   T36] audit: type=1400 audit(1792962301.220:72): avc:  denied  { unmount } for  pid=314 comm="syz-executor279" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   25.577392][   T36] audit: type=1400 audit(1792962301.240:73): avc:  denied  { mounton } for  pid=314 comm="syz-executor279" path="/dev/gadgetfs" dev="devtmpfs" ino=434 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   25.578352][  T314] ------------[ cut here ]------------
[   25.605795][  T314] WARNING: CPU: 0 PID: 314 at fs/inode.c:340 drop_nlink+0xce/0x110
[   25.613784][  T314] Modules linked in:
[   25.617816][  T314] CPU: 0 UID: 0 PID: 314 Comm: syz-executor279 Not tainted syzkaller #0 c7db6ca8d812f5bae3d5d94ae814da2ca1a33223
[   25.629808][  T314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
[   25.639942][  T314] RIP: 0010:drop_nlink+0xce/0x110
[   25.645010][  T314] Code: 04 00 00 be 08 00 00 00 e8 1f 0b ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 58 88 b6 03 cc e8 b2 7a 94 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c
[   25.664702][  T314] RSP: 0018:ffffc9000126fb48 EFLAGS: 00010293
[   25.670817][  T314] RAX: ffffffff81f4db8e RBX: ffff88810471b480 RCX: ffff888124b63b40
[   25.678842][  T314] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   25.686861][  T314] RBP: ffffc9000126fb70 R08: 0000000000000003 R09: 0000000000000004
[   25.694850][  T314] R10: dffffc0000000000 R11: fffff5200024df58 R12: dffffc0000000000
[   25.703036][  T314] R13: 1ffff110208e3699 R14: ffff88810471b4c8 R15: 0000000000000000
[   25.711064][  T314] FS:  00005555718383c0(0000) GS:ffff8881f6c00000(0000) knlGS:0000000000000000
[   25.720083][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.726722][  T314] CR2: 00005555718497a8 CR3: 00000001087b8000 CR4: 00000000003526b0
[   25.734711][  T314] Call Trace:
[   25.738165][  T314]  <TASK>
[   25.741121][  T314]  shmem_rmdir+0x5f/0x90
[   25.745379][  T314]  vfs_rmdir+0x3db/0x560
[   25.749685][  T314]  incfs_kill_sb+0x102/0x220
[   25.754371][  T314]  deactivate_locked_super+0xd2/0x270
[   25.759826][  T314]  deactivate_super+0xb8/0xe0
[   25.764536][  T314]  cleanup_mnt+0x438/0x4d0
[   25.769017][  T314]  __cleanup_mnt+0x1d/0x40
[   25.773466][  T314]  task_work_run+0x1e8/0x260
[   25.778155][  T314]  ? __cfi_task_work_run+0x10/0x10
[   25.783321][  T314]  ? path_umount+0x34a/0xf60
[   25.787968][  T314]  ptrace_notify+0x25a/0x290
[   25.792634][  T314]  ? __cfi_ptrace_notify+0x10/0x10
[   25.797824][  T314]  ? putname+0x113/0x150
[   25.802108][  T314]  ? __x64_sys_umount+0x12e/0x180
[   25.807195][  T314]  ? __cfi___x64_sys_umount+0x10/0x10
[   25.812669][  T314]  syscall_exit_work+0x84/0x150
[   25.817590][  T314]  syscall_exit_to_user_mode_prepare+0x21/0x40
[   25.823787][  T314]  syscall_exit_to_user_mode+0x15/0xb0
[   25.829321][  T314]  do_syscall_64+0x63/0xf0
[   25.833770][  T314]  ? clear_bhb_loop+0x50/0xa0
[   25.838511][  T314]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   25.844451][  T314] RIP: 0033:0x7f40f2b47527
[   25.848935][  T314] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8
[   25.868623][  T314] RSP: 002b:00007ffd4b9a1c38 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   25.877120][  T314] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f40f2b47527
[   25.885118][  T314] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd4b9a1cf0
[   25.893173][  T314] RBP: 00007ffd4b9a1cf0 R08: 00007ffd4b9a2cf0 R09: 00000000ffffffff
[   25.901245][  T314] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b9a2d60
[   25.909284][  T314] R13: 0000555571839730 R14: 00007ffd4b9a2d60 R15: 0000000000000001
[   25.917325][  T314]  </TASK>
[   25.920388][  T314] ---[ end trace 0000000000000000 ]---
[   25.925998][  T314] ==================================================================
[   25.934098][  T314] BUG: KASAN: null-ptr-deref in ihold+0x24/0x70
[   25.940363][  T314] Write of size 4 at addr 0000000000000168 by task syz-executor279/314
[   25.948610][  T314] 
[   25.950968][  T314] CPU: 1 UID: 0 PID: 314 Comm: syz-executor279 Tainted: G        W          syzkaller #0 c7db6ca8d812f5bae3d5d94ae814da2ca1a33223
[   25.950995][  T314] Tainted: [W]=WARN
[   25.951001][  T314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
[   25.951011][  T314] Call Trace:
[   25.951018][  T314]  <TASK>
[   25.951025][  T314]  __dump_stack+0x21/0x30
[   25.951053][  T314]  dump_stack_lvl+0x140/0x1c0
[   25.951077][  T314]  ? __cfi_dump_stack_lvl+0x10/0x10
[   25.951102][  T314]  print_report+0x3d/0x70
[   25.951125][  T314]  kasan_report+0x162/0x1a0
[   25.951141][  T314]  ? ihold+0x24/0x70
[   25.951156][  T314]  ? ihold+0x24/0x70
[   25.951170][  T314]  kasan_check_range+0x25a/0x2b0
[   25.951188][  T314]  __kasan_check_write+0x18/0x20
[   25.951211][  T314]  ihold+0x24/0x70
[   25.951224][  T314]  vfs_rmdir+0x25c/0x560
[   25.951243][  T314]  incfs_kill_sb+0x102/0x220
[   25.951266][  T314]  deactivate_locked_super+0xd2/0x270
[   25.951285][  T314]  deactivate_super+0xb8/0xe0
[   25.951303][  T314]  cleanup_mnt+0x438/0x4d0
[   25.951319][  T314]  __cleanup_mnt+0x1d/0x40
[   25.951333][  T314]  task_work_run+0x1e8/0x260
[   25.951357][  T314]  ? __cfi_task_work_run+0x10/0x10
[   25.951379][  T314]  ? path_umount+0x34a/0xf60
[   25.951399][  T314]  ptrace_notify+0x25a/0x290
[   25.951422][  T314]  ? __cfi_ptrace_notify+0x10/0x10
[   25.951444][  T314]  ? putname+0x113/0x150
[   25.951469][  T314]  ? __x64_sys_umount+0x12e/0x180
[   25.951489][  T314]  ? __cfi___x64_sys_umount+0x10/0x10
[   25.951509][  T314]  syscall_exit_work+0x84/0x150
[   25.951529][  T314]  syscall_exit_to_user_mode_prepare+0x21/0x40
[   25.951549][  T314]  syscall_exit_to_user_mode+0x15/0xb0
[   25.951573][  T314]  do_syscall_64+0x63/0xf0
[   25.951588][  T314]  ? clear_bhb_loop+0x50/0xa0
[   25.951611][  T314]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   25.951632][  T314] RIP: 0033:0x7f40f2b47527
[   25.951645][  T314] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8
[   25.951658][  T314] RSP: 002b:00007ffd4b9a1c38 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   25.951675][  T314] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f40f2b47527
[   25.951699][  T314] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd4b9a1cf0
[   25.951709][  T314] RBP: 00007ffd4b9a1cf0 R08: 00007ffd4b9a2cf0 R09: 00000000ffffffff
[   25.951720][  T314] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b9a2d60
[   25.951730][  T314] R13: 0000555571839730 R14: 00007ffd4b9a2d60 R15: 0000000000000001
[   25.951743][  T314]  </TASK>
[   25.951749][  T314] ==================================================================
[   26.210675][  T314] Disabling lock debugging due to kernel taint
[   26.216917][  T314] BUG: kernel NULL pointer dereference, address: 0000000000000168
[   26.224768][  T314] #PF: supervisor write access in kernel mode
[   26.230860][  T314] #PF: error_code(0x0002) - not-present page
[   26.236840][  T314] PGD 0 P4D 0 
[   26.240221][  T314] Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI
[   26.246294][  T314] CPU: 1 UID: 0 PID: 314 Comm: syz-executor279 Tainted: G    B   W          syzkaller #0 c7db6ca8d812f5bae3d5d94ae814da2ca1a33223
[   26.259663][  T314] Tainted: [B]=BAD_PAGE, [W]=WARN
[   26.264679][  T314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
[   26.274732][  T314] RIP: 0010:ihold+0x2a/0x70
[   26.279273][  T314] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 9d 71 94 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 dc 01 ee ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 ad
[   26.298913][  T314] RSP: 0018:ffffc9000126fb88 EFLAGS: 00010246
[   26.305014][  T314] RAX: ffff888124b63b00 RBX: 0000000000000000 RCX: ffff888124b63b40
[   26.312998][  T314] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   26.320982][  T314] RBP: ffffc9000126fb98 R08: ffffffff893cf947 R09: 1ffffffff1279f28
[   26.328962][  T314] R10: dffffc0000000000 R11: fffffbfff1279f29 R12: 0000000000000000
[   26.336940][  T314] R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
[   26.344913][  T314] FS:  00005555718383c0(0000) GS:ffff8881f6d00000(0000) knlGS:0000000000000000
[   26.353845][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.360429][  T314] CR2: 0000000000000168 CR3: 00000001087b8000 CR4: 00000000003526b0
[   26.368412][  T314] Call Trace:
[   26.371693][  T314]  <TASK>
[   26.374627][  T314]  vfs_rmdir+0x25c/0x560
[   26.378882][  T314]  incfs_kill_sb+0x102/0x220
[   26.383485][  T314]  deactivate_locked_super+0xd2/0x270
[   26.388866][  T314]  deactivate_super+0xb8/0xe0
[   26.393551][  T314]  cleanup_mnt+0x438/0x4d0
[   26.397987][  T314]  __cleanup_mnt+0x1d/0x40
[   26.402412][  T314]  task_work_run+0x1e8/0x260
[   26.407017][  T314]  ? __cfi_task_work_run+0x10/0x10
[   26.412151][  T314]  ? path_umount+0x34a/0xf60
[   26.416775][  T314]  ptrace_notify+0x25a/0x290
[   26.421425][  T314]  ? __cfi_ptrace_notify+0x10/0x10
[   26.426593][  T314]  ? putname+0x113/0x150
[   26.430858][  T314]  ? __x64_sys_umount+0x12e/0x180
[   26.435896][  T314]  ? __cfi___x64_sys_umount+0x10/0x10
[   26.441278][  T314]  syscall_exit_work+0x84/0x150
[   26.446142][  T314]  syscall_exit_to_user_mode_prepare+0x21/0x40
[   26.452311][  T314]  syscall_exit_to_user_mode+0x15/0xb0
[   26.457788][  T314]  do_syscall_64+0x63/0xf0
[   26.462280][  T314]  ? clear_bhb_loop+0x50/0xa0
[   26.466996][  T314]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   26.472939][  T314] RIP: 0033:0x7f40f2b47527
[   26.477371][  T314] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8
[   26.497013][  T314] RSP: 002b:00007ffd4b9a1c38 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   26.505464][  T314] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f40f2b47527
[   26.513444][  T314] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd4b9a1cf0
[   26.521425][  T314] RBP: 00007ffd4b9a1cf0 R08: 00007ffd4b9a2cf0 R09: 00000000ffffffff
[   26.529408][  T314] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b9a2d60
[   26.537435][  T314] R13: 0000555571839730 R14: 00007ffd4b9a2d60 R15: 0000000000000001
[   26.545434][  T314]  </TASK>
[   26.548479][  T314] Modules linked in:
[   26.552393][  T314] CR2: 0000000000000168
[   26.556550][  T314] ---[ end trace 0000000000000000 ]---
[   26.562035][  T314] RIP: 0010:ihold+0x2a/0x70
[   26.566550][  T314] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 9d 71 94 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 dc 01 ee ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 ad
[   26.586199][  T314] RSP: 0018:ffffc9000126fb88 EFLAGS: 00010246
[   26.592283][  T314] RAX: ffff888124b63b00 RBX: 0000000000000000 RCX: ffff888124b63b40
[   26.600256][  T314] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   26.608248][  T314] RBP: ffffc9000126fb98 R08: ffffffff893cf947 R09: 1ffffffff1279f28
[   26.616222][  T314] R10: dffffc0000000000 R11: fffffbfff1279f29 R12: 0000000000000000
[   26.624211][  T314] R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
[   26.632186][  T314] FS:  00005555718383c0(0000) GS:ffff8881f6d00000(0000) knlGS:0000000000000000
[   26.641120][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.647705][  T314] CR2: 0000000000000168 CR3: 00000001087b8000 CR4: 00000000003526b0
[   26.655686][  T314] Kernel panic - not syncing: Fatal exception
[   26.661947][  T314] Kernel Offset: disabled
[   26.666280][  T314] Rebooting in 86400 seconds..