./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1573819227 <...> [ 92.194708][ T979] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.163' (ED25519) to the list of known hosts. execve("./syz-executor1573819227", ["./syz-executor1573819227"], 0x7ffd3c8b7bc0 /* 10 vars */) = 0 brk(NULL) = 0x555573809000 brk(0x555573809d00) = 0x555573809d00 arch_prctl(ARCH_SET_FS, 0x555573809380) = 0 set_tid_address(0x555573809650) = 5842 set_robust_list(0x555573809660, 24) = 0 rseq(0x555573809ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1573819227", 4096) = 28 getrandom("\xae\x62\x8a\xc2\xf2\x67\x26\x44", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555573809d00 brk(0x55557382ad00) = 0x55557382ad00 brk(0x55557382b000) = 0x55557382b000 mprotect(0x7f47ddea7000, 16384, 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 mkdir("./syzkaller.hW5x1Z", 0700) = 0 chmod("./syzkaller.hW5x1Z", 0777) = 0 chdir("./syzkaller.hW5x1Z") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached , child_tidptr=0x555573809650) = 5843 [pid 5843] set_robust_list(0x555573809660, 24) = 0 [pid 5843] chdir("./0") = 0 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 [pid 5843] close(3) = 0 [pid 5843] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5843] write(1, "executing program\n", 18executing program ) = 18 [pid 5843] memfd_create("syzkaller", 0) = 3 [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f47d5800000 [pid 5843] write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x08\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\x51\x49\x92\x54\x8e\xa5\x9a\x39\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5843] munmap(0x7f47d5800000, 138412032) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5843] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5843] close(3) = 0 [pid 5843] close(4) = 0 [pid 5843] mkdir("./bus", 0777) = 0 [pid 5843] mount("/dev/loop0", "./bus", "ntfs3", 0, "") = 0 [pid 5843] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [ 93.253436][ T5843] loop0: detected capacity change from 0 to 4096 [pid 5843] chdir("./bus") = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5843] openat(AT_FDCWD, "./bus", O_RDWR|O_CREAT|O_APPEND|O_SYNC, 000) = 4 [pid 5843] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5843] mount(NULL, ".", 0x200000000f40, MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_NOATIME|MS_MOVE|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 5843] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5843] chdir(".") = 0 [pid 5843] open(".", O_RDONLY) = 6 [pid 5843] fcntl(6, F_NOTIFY, DN_ACCESS|DN_MODIFY|DN_CREATE|DN_DELETE|DN_RENAME|DN_MULTISHOT) = 0 [pid 5843] open("./file0", O_RDONLY|O_CREAT|O_NONBLOCK|O_NOFOLLOW|O_NOATIME, 000) = -1 EINVAL (Invalid argument) [pid 5843] exit_group(0) = ? [pid 5843] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55557380a6f0 /* 4 entries */, 32768) = 104 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 umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x555573812730 /* 2 entries */, 32768) = 48 getdents64(4, 0x555573812730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/bus") = 0 getdents64(3, 0x55557380a6f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./0") = 0 mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 93.361700][ T5843] ntfs3(loop0): ino=5, "/" mi_enum_attr [ 93.368511][ T5843] ntfs3(loop0): Mark volume as dirty due to NTFS errors ioctl(3, LOOP_CLR_FD) = 0 [ 93.414095][ T1110] ------------[ cut here ]------------ [ 93.419716][ T1110] kernel BUG at fs/notify/dnotify/dnotify.c:134! [ 93.426578][ T1110] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 93.432845][ T1110] CPU: 0 UID: 0 PID: 1110 Comm: kworker/u8:6 Not tainted 6.16.0-rc3-next-20250625-syzkaller #0 PREEMPT(full) [ 93.444652][ T1110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 93.454732][ T1110] Workqueue: events_unbound fsnotify_mark_destroy_workfn [ 93.461805][ T1110] RIP: 0010:dnotify_free_mark+0x58/0x60 [ 93.467358][ T1110] Code: 89 f7 e8 5b 2a db ff 49 83 3e 00 75 17 e8 00 15 77 ff 48 8b 3d 39 f2 72 0b 48 89 de 5b 41 5e e9 ae 63 d0 ff e8 e9 14 77 ff 90 <0f> 0b cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 93.486971][ T1110] RSP: 0018:ffffc90003aef9a8 EFLAGS: 00010293 [ 93.493040][ T1110] RAX: ffffffff8248a797 RBX: ffff888072a0e000 RCX: ffff8880267c8000 [ 93.501019][ T1110] RDX: 0000000000000000 RSI: ffffffff8d99260d RDI: ffff888072a0e000 [ 93.508993][ T1110] RBP: ffffc90003aefa70 R08: ffffffff8fa18d37 R09: 1ffffffff1f431a6 [ 93.516966][ T1110] R10: dffffc0000000000 R11: ffffffff8248a740 R12: 1ffff1100e541c02 [ 93.524935][ T1110] R13: dffffc0000000000 R14: ffff888072a0e080 R15: ffffffff8b9a0b28 [ 93.532910][ T1110] FS: 0000000000000000(0000) GS:ffff888125c21000(0000) knlGS:0000000000000000 [ 93.541841][ T1110] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.548427][ T1110] CR2: 000055557381a738 CR3: 00000000332be000 CR4: 00000000003526f0 [ 93.556399][ T1110] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.564387][ T1110] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.572359][ T1110] Call Trace: [ 93.575639][ T1110] [ 93.578569][ T1110] fsnotify_mark_destroy_workfn+0x255/0x2f0 [ 93.584477][ T1110] ? __pfx_fsnotify_mark_destroy_workfn+0x10/0x10 [ 93.590899][ T1110] ? _raw_spin_unlock_irq+0x23/0x50 [ 93.596290][ T1110] ? process_scheduled_works+0x9ef/0x17b0 [ 93.602013][ T1110] ? process_scheduled_works+0x9ef/0x17b0 [ 93.607737][ T1110] process_scheduled_works+0xade/0x17b0 [ 93.613294][ T1110] ? __pfx_process_scheduled_works+0x10/0x10 [ 93.619280][ T1110] worker_thread+0x8a0/0xda0 [ 93.623884][ T1110] kthread+0x711/0x8a0 [ 93.627959][ T1110] ? __pfx_worker_thread+0x10/0x10 [ 93.633088][ T1110] ? __pfx_kthread+0x10/0x10 [ 93.637687][ T1110] ? _raw_spin_unlock_irq+0x23/0x50 [ 93.642888][ T1110] ? lockdep_hardirqs_on+0x9c/0x150 [ 93.648091][ T1110] ? __pfx_kthread+0x10/0x10 [ 93.652677][ T1110] ret_from_fork+0x3fc/0x770 [ 93.657272][ T1110] ? __pfx_ret_from_fork+0x10/0x10 [ 93.662386][ T1110] ? __switch_to_asm+0x39/0x70 [ 93.667147][ T1110] ? __switch_to_asm+0x33/0x70 [ 93.671908][ T1110] ? __pfx_kthread+0x10/0x10 [ 93.676492][ T1110] ret_from_fork_asm+0x1a/0x30 [ 93.681260][ T1110] [ 93.684280][ T1110] Modules linked in: [ 93.688414][ T1110] ---[ end trace 0000000000000000 ]--- [ 93.694985][ T1110] RIP: 0010:dnotify_free_mark+0x58/0x60 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached , child_tidptr=0x555573809650) = 5844 [ 93.708442][ T1110] Code: 89 f7 e8 5b 2a db ff 49 83 3e 00 75 17 e8 00 15 77 ff 48 8b 3d 39 f2 72 0b 48 89 de 5b 41 5e e9 ae 63 d0 ff e8 e9 14 77 ff 90 <0f> 0b cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 93.728177][ T1110] RSP: 0018:ffffc90003aef9a8 EFLAGS: 00010293 [ 93.734440][ T1110] RAX: ffffffff8248a797 RBX: ffff888072a0e000 RCX: ffff8880267c8000 [ 93.743117][ T1110] RDX: 0000000000000000 RSI: ffffffff8d99260d RDI: ffff888072a0e000 [ 93.751284][ T1110] RBP: ffffc90003aefa70 R08: ffffffff8fa18d37 R09: 1ffffffff1f431a6 [pid 5844] set_robust_list(0x555573809660, 24) = 0 [pid 5844] chdir("./1") = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] setpgid(0, 0) = 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5844] write(3, "1000", 4) = 4 [pid 5844] close(3) = 0 [pid 5844] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5844] write(1, "executing program\n", 18) = 18 [pid 5844] memfd_create("syzkaller", 0) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f47d5800000 [ 93.759777][ T1110] R10: dffffc0000000000 R11: ffffffff8248a740 R12: 1ffff1100e541c02 [ 93.768363][ T1110] R13: dffffc0000000000 R14: ffff888072a0e080 R15: ffffffff8b9a0b28 [ 93.776453][ T1110] FS: 0000000000000000(0000) GS:ffff888125d21000(0000) knlGS:0000000000000000 [ 93.785697][ T1110] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.792469][ T1110] CR2: 00007ffc17bfa2d8 CR3: 0000000030436000 CR4: 00000000003526f0 [ 93.800683][ T1110] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.809722][ T1110] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.818185][ T1110] Kernel panic - not syncing: Fatal exception [ 93.824539][ T1110] Kernel Offset: disabled [ 93.828860][ T1110] Rebooting in 86400 seconds..