ci2-android-5-10/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-10/syz-executor3407301733 <...> Warning: Permanently added '10.128.0.131' (ED25519) to the list of known hosts. execve("ci2-android-5-10/syz-executor3407301733", ["ci2-android-5-10/syz-executor3407301733"], 0x7ffe9bcb9b50 /* 10 vars */) = 0 brk(NULL) = 0x555571235000 brk(0x555571235d40) = 0x555571235d40 arch_prctl(ARCH_SET_FS, 0x5555712353c0) = 0 set_tid_address(0x555571235690) = 297 set_robust_list(0x5555712356a0, 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-5-10/syz-executor3407301733", 4096) = 45 getrandom("\x69\xb2\x52\x6b\x3f\x4b\x22\x62", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555571235d40 brk(0x555571256d40) = 0x555571256d40 brk(0x555571257000) = 0x555571257000 mprotect(0x7ff9dddba000, 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("\x45\xa3\x0e\xbe\x9c\x07\x37\x77", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.pRZq6d", 0700) = 0 chmod("./syzkaller.pRZq6d", 0777) = 0 chdir("./syzkaller.pRZq6d") = 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|SIGCHLD, child_tidptr=0x555571235690) = 298 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-5-10/strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x5555712356a0, 24) = 0 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] chdir("./0") = 0 [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] write(3, "1000", 4) = 4 [pid 298] close(3) = 0 [pid 298] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] write(1, "executing program\n", 18) = 18 [pid 298] memfd_create("syzkaller", 0) = 3 [pid 298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff9d5909000 executing program [pid 298] 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"..., 262144) = 262144 [pid 298] munmap(0x7ff9d5909000, 138412032) = 0 [pid 298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 25.926725][ T24] audit: type=1400 audit(1793048361.660:64): avc: denied { execmem } for pid=297 comm="syz-executor340" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 25.948999][ T24] audit: type=1400 audit(1793048361.680:65): avc: denied { read } for pid=297 comm="syz-executor340" name="loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 298] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 298] close(3) = 0 [pid 298] close(4) = 0 [pid 298] mkdir("./file0", 0777) = 0 [ 25.973741][ T24] audit: type=1400 audit(1793048361.680:66): avc: denied { open } for pid=297 comm="syz-executor340" path="/dev/loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.997993][ T24] audit: type=1400 audit(1793048361.690:67): avc: denied { ioctl } for pid=297 comm="syz-executor340" path="/dev/loop0" dev="devtmpfs" ino=115 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 26.024087][ T24] audit: type=1400 audit(1793048361.710:68): avc: denied { write } for pid=298 comm="syz-executor340" name="loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 26.048120][ T24] audit: type=1400 audit(1793048361.760:69): avc: denied { mounton } for pid=298 comm="syz-executor340" path="/root/syzkaller.pRZq6d/0/file0" dev="sda1" ino=2028 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 298] mount("/dev/loop0", "./file0", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_I_VERSION|MS_LAZYTIME|0x200, "seclabel,,errors=continue") = 0 [pid 298] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 298] chdir("./file0") = 0 [pid 298] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 298] ioctl(4, LOOP_CLR_FD) = 0 [pid 298] close(4) = 0 [pid 298] mount("./file0", "./file0", "incremental-fs", MS_NODEV|MS_NOATIME, NULL) = 0 [pid 298] exit_group(0) = ? [pid 298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=298, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 26.092682][ T298] EXT4-fs error (device loop0): ext4_xattr_inode_iget:397: comm syz-executor340: Parent and EA inode have the same ino 15 [ 26.106026][ T298] EXT4-fs (loop0): 1 orphan inode deleted [ 26.112089][ T298] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue 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, 0x555571236750 /* 4 entries */, 32768) = 112 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0755, st_size=1024, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0 getdents64(4, 0x55557123e790 /* 5 entries */, 32768) = 144 umount2("./0/file0/lost+found", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0/lost+found", {st_mode=S_IFBLK|S_ISVTX|0614, st_rdev=makedev(0, 0xe), ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/file0/lost+found") = 0 [ 26.121378][ T24] audit: type=1400 audit(1793048361.860:70): avc: denied { mount } for pid=298 comm="syz-executor340" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 26.143755][ T24] audit: type=1400 audit(1793048361.870:71): avc: denied { mounton } for pid=298 comm="syz-executor340" path="/root/syzkaller.pRZq6d/0/file0/file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 26.150534][ T297] EXT4-fs error (device loop0): htree_dirblock_to_tree:1092: inode #2: block 13: comm syz-executor340: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0 umount2("./0/file0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0/file1", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/file0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 fstat(5, {st_mode=S_IFDIR|0700, st_size=60, ...}) = 0 getdents64(5, 0x5555712467d0 /* 2 entries */, 32768) = 48 getdents64(5, 0x5555712467d0 /* 0 entries */, 32768) = 0 close(5) = 0 rmdir("./0/file0/file1") = 0 [ 26.170367][ T24] audit: type=1400 audit(1793048361.870:72): avc: denied { write } for pid=298 comm="syz-executor340" name="file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 26.212530][ T24] audit: type=1400 audit(1793048361.870:73): avc: denied { add_name } for pid=298 comm="syz-executor340" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 26.212888][ T297] ------------[ cut here ]------------ [ 26.239180][ T297] kernel BUG at fs/namei.c:2836! [ 26.244174][ T297] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 26.250250][ T297] CPU: 1 PID: 297 Comm: syz-executor340 Not tainted syzkaller #0 [ 26.257961][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 [ 26.268141][ T297] RIP: 0010:may_delete+0x7a5/0x7b0 [ 26.273268][ T297] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 bc 02 f5 ff e9 be fd ff ff e8 f2 74 ba ff 0f 0b e8 eb 74 ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 [ 26.292885][ T297] RSP: 0018:ffffc90000b77be8 EFLAGS: 00010293 [ 26.298971][ T297] RAX: ffffffff81aa41d5 RBX: ffff88811bad4cc0 RCX: ffff8881047d0000 [ 26.306966][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 26.314952][ T297] RBP: ffffc90000b77c60 R08: 0000000000000003 R09: 0000000000000004 [ 26.322934][ T297] R10: dffffc0000000000 R11: fffff5200016ef60 R12: ffff88811b866600 [ 26.331016][ T297] R13: 1ffff1102375a998 R14: ffff88811ba99140 R15: dffffc0000000000 [ 26.339019][ T297] FS: 00005555712353c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 26.347973][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.354582][ T297] CR2: 00007f571248c000 CR3: 0000000106987000 CR4: 00000000003506a0 [ 26.362568][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.370555][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.378536][ T297] Call Trace: [ 26.381843][ T297] ? __kasan_check_write+0x14/0x20 [ 26.387007][ T297] vfs_rmdir+0x29/0x3c0 [ 26.391172][ T297] ? incfs_kill_sb+0xec/0x200 [ 26.395862][ T297] incfs_kill_sb+0xf7/0x200 [ 26.400380][ T297] deactivate_locked_super+0xa0/0x100 [ 26.405770][ T297] deactivate_super+0xaf/0xe0 [ 26.410468][ T297] cleanup_mnt+0x44f/0x500 [ 26.414896][ T297] __cleanup_mnt+0x19/0x20 [ 26.419323][ T297] task_work_run+0x127/0x190 [ 26.423933][ T297] ptrace_notify+0x230/0x270 [ 26.428539][ T297] ? do_notify_parent+0x810/0x810 [ 26.433580][ T297] ? user_path_at_empty+0x43/0x50 [ 26.438652][ T297] ? __x64_sys_umount+0x12d/0x170 [ 26.443704][ T297] ? path_umount+0xfa0/0xfa0 [ 26.448345][ T297] syscall_exit_work+0x6e/0x140 [ 26.453210][ T297] syscall_exit_to_user_mode+0x2f/0x40 [ 26.458682][ T297] do_syscall_64+0x3d/0x40 [ 26.463113][ T297] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 26.469029][ T297] RIP: 0033:0x7ff9ddd2e0b7 [ 26.473467][ T297] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 d4 19 09 00 00 00 00 00 eb 96 e8 81 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 [ 26.493093][ T297] RSP: 002b:00007ffeeff66a18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 26.501528][ T297] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff9ddd2e0b7 [ 26.509554][ T297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffeeff66ad0 [ 26.517579][ T297] RBP: 00007ffeeff66ad0 R08: 00007ffeeff67ad0 R09: 00000000ffffffff [ 26.525567][ T297] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeeff67bc0 [ 26.533554][ T297] R13: 000055557123e760 R14: 0000000000000001 R15: 431bde82d7b634db [ 26.541547][ T297] Modules linked in: [ 26.545600][ T297] ---[ end trace 46608affaa72d701 ]--- [ 26.551735][ T297] RIP: 0010:may_delete+0x7a5/0x7b0 [ 26.556964][ T297] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 bc 02 f5 ff e9 be fd ff ff e8 f2 74 ba ff 0f 0b e8 eb 74 ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 [ 26.576657][ T297] RSP: 0018:ffffc90000b77be8 EFLAGS: 00010293 [ 26.582774][ T297] RAX: ffffffff81aa41d5 RBX: ffff88811bad4cc0 RCX: ffff8881047d0000 [ 26.590800][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 26.598827][ T297] RBP: ffffc90000b77c60 R08: 0000000000000003 R09: 0000000000000004 [ 26.606801][ T297] R10: dffffc0000000000 R11: fffff5200016ef60 R12: ffff88811b866600 [ 26.614854][ T297] R13: 1ffff1102375a998 R14: ffff88811ba99140 R15: dffffc0000000000 [ 26.622859][ T297] FS: 00005555712353c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 26.631875][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.638574][ T297] CR2: 00007f571248c000 CR3: 0000000106987000 CR4: 00000000003506a0 [ 26.646547][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.654603][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.662610][ T297] Kernel panic - not syncing: Fatal exception [ 26.668961][ T297] Kernel Offset: disabled [ 26.673308][ T297] Rebooting in 86400 seconds..