./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4135430232 <...> Warning: Permanently added '10.128.1.29' (ED25519) to the list of known hosts. execve("./syz-executor4135430232", ["./syz-executor4135430232"], 0x7ffee00063d0 /* 10 vars */) = 0 brk(NULL) = 0x55556cd32000 brk(0x55556cd32d00) = 0x55556cd32d00 arch_prctl(ARCH_SET_FS, 0x55556cd32380) = 0 set_tid_address(0x55556cd32650) = 5838 set_robust_list(0x55556cd32660, 24) = 0 rseq(0x55556cd32ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4135430232", 4096) = 28 getrandom("\x9a\xdf\xe4\x5e\x01\x42\x64\x14", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556cd32d00 brk(0x55556cd53d00) = 0x55556cd53d00 brk(0x55556cd54000) = 0x55556cd54000 mprotect(0x7fdad409b000, 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.grUm6X", 0700) = 0 chmod("./syzkaller.grUm6X", 0777) = 0 chdir("./syzkaller.grUm6X") = 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 5839 attached [pid 5839] set_robust_list(0x55556cd32660, 24) = 0 [pid 5839] chdir("./0") = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5839] setpgid(0, 0) = 0 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5838] <... clone resumed>, child_tidptr=0x55556cd32650) = 5839 [pid 5839] <... openat resumed>) = 3 [pid 5839] write(3, "1000", 4) = 4 [pid 5839] close(3) = 0 [pid 5839] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5839] write(1, "executing program\n", 18executing program ) = 18 [pid 5839] memfd_create("syzkaller", 0) = 3 [pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdacba00000 [pid 5839] 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 5839] munmap(0x7fdacba00000, 138412032) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5839] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5839] close(3) = 0 [pid 5839] close(4) = 0 [pid 5839] mkdir("./bus", 0777) = 0 [pid 5839] mount("/dev/loop0", "./bus", "ntfs3", 0, "") = 0 [ 89.395914][ T5839] loop0: detected capacity change from 0 to 4096 [pid 5839] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5839] chdir("./bus") = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5839] openat(AT_FDCWD, "./bus", O_RDWR|O_CREAT|O_APPEND|O_SYNC, 000) = 4 [pid 5839] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5839] 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 5839] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5839] chdir(".") = 0 [pid 5839] open(".", O_RDONLY) = 6 [pid 5839] fcntl(6, F_NOTIFY, DN_ACCESS|DN_MODIFY|DN_CREATE|DN_DELETE|DN_RENAME|DN_MULTISHOT) = 0 [pid 5839] open("./file0", O_RDONLY|O_CREAT|O_NONBLOCK|O_NOFOLLOW|O_NOATIME, 000) = -1 EINVAL (Invalid argument) [pid 5839] exit_group(0) = ? [pid 5839] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 89.539859][ T5839] ntfs3(loop0): ino=5, "/" mi_enum_attr [ 89.545507][ T5839] ntfs3(loop0): Mark volume as dirty due to NTFS errors 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, 0x55556cd336f0 /* 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, 0x55556cd3b730 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556cd3b730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/bus") = 0 [ 89.688326][ T12] ------------[ cut here ]------------ [ 89.694172][ T12] kernel BUG at fs/notify/dnotify/dnotify.c:134! [ 89.700715][ T12] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 89.707112][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted 6.16.0-rc3-next-20250625-syzkaller #0 PREEMPT(full) [ 89.718570][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 89.728627][ T12] Workqueue: events_unbound fsnotify_mark_destroy_workfn getdents64(3, 0x55556cd336f0 /* 0 entries */, 32768) = 0 close(3) = 0 [ 89.735774][ T12] RIP: 0010:dnotify_free_mark+0x58/0x60 [ 89.741498][ T12] 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 [ 89.761113][ T12] RSP: 0018:ffffc900001179a8 EFLAGS: 00010293 [ 89.767226][ T12] RAX: ffffffff8248a797 RBX: ffff888026049000 RCX: ffff88801ce95a00 [ 89.775206][ T12] RDX: 0000000000000000 RSI: ffffffff8d99260d RDI: ffff888026049000 [ 89.783187][ T12] RBP: ffffc90000117a70 R08: ffffffff8fa18d37 R09: 1ffffffff1f431a6 [ 89.791193][ T12] R10: dffffc0000000000 R11: ffffffff8248a740 R12: 1ffff11004c09202 [ 89.799180][ T12] R13: dffffc0000000000 R14: ffff888026049080 R15: ffffffff8b9a0b28 [ 89.807149][ T12] FS: 0000000000000000(0000) GS:ffff888125c21000(0000) knlGS:0000000000000000 [ 89.816082][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.822667][ T12] CR2: 00007ffcda604bd8 CR3: 00000000775aa000 CR4: 00000000003526f0 [ 89.830666][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.838657][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.846727][ T12] Call Trace: [ 89.850048][ T12] [ 89.853008][ T12] fsnotify_mark_destroy_workfn+0x255/0x2f0 [ 89.859033][ T12] ? __pfx_fsnotify_mark_destroy_workfn+0x10/0x10 [ 89.865474][ T12] ? _raw_spin_unlock_irq+0x23/0x50 [ 89.870694][ T12] ? process_scheduled_works+0x9ef/0x17b0 [ 89.876430][ T12] ? process_scheduled_works+0x9ef/0x17b0 [ 89.882160][ T12] process_scheduled_works+0xade/0x17b0 [ 89.887734][ T12] ? __pfx_process_scheduled_works+0x10/0x10 [ 89.893732][ T12] worker_thread+0x8a0/0xda0 [ 89.898342][ T12] kthread+0x711/0x8a0 [ 89.902420][ T12] ? __pfx_worker_thread+0x10/0x10 [ 89.907572][ T12] ? __pfx_kthread+0x10/0x10 [ 89.912182][ T12] ? _raw_spin_unlock_irq+0x23/0x50 [ 89.917393][ T12] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.922603][ T12] ? __pfx_kthread+0x10/0x10 [ 89.927198][ T12] ret_from_fork+0x3fc/0x770 [ 89.931803][ T12] ? __pfx_ret_from_fork+0x10/0x10 rmdir("./0") = 0 mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached , child_tidptr=0x55556cd32650) = 5841 [pid 5841] set_robust_list(0x55556cd32660, 24) = 0 [ 89.936928][ T12] ? __switch_to_asm+0x39/0x70 [ 89.941698][ T12] ? __switch_to_asm+0x33/0x70 [ 89.946587][ T12] ? __pfx_kthread+0x10/0x10 [ 89.951268][ T12] ret_from_fork_asm+0x1a/0x30 [ 89.956039][ T12] [ 89.959063][ T12] Modules linked in: [ 89.963137][ T12] ---[ end trace 0000000000000000 ]--- [ 89.970549][ T12] RIP: 0010:dnotify_free_mark+0x58/0x60 [pid 5841] chdir("./1") = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5841] write(1, "executing program\n", 18executing program ) = 18 [ 89.976298][ T12] 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 [ 89.996272][ T12] RSP: 0018:ffffc900001179a8 EFLAGS: 00010293 [ 90.002634][ T12] RAX: ffffffff8248a797 RBX: ffff888026049000 RCX: ffff88801ce95a00 [ 90.011218][ T12] RDX: 0000000000000000 RSI: ffffffff8d99260d RDI: ffff888026049000 [ 90.019417][ T12] RBP: ffffc90000117a70 R08: ffffffff8fa18d37 R09: 1ffffffff1f431a6 [ 90.028190][ T12] R10: dffffc0000000000 R11: ffffffff8248a740 R12: 1ffff11004c09202 [pid 5841] memfd_create("syzkaller", 0) = 3 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdacba00000 [ 90.036189][ T12] R13: dffffc0000000000 R14: ffff888026049080 R15: ffffffff8b9a0b28 [ 90.044506][ T12] FS: 0000000000000000(0000) GS:ffff888125c21000(0000) knlGS:0000000000000000 [ 90.053689][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.060421][ T12] CR2: 00007ffcda604bd8 CR3: 00000000339ee000 CR4: 00000000003526f0 [ 90.068738][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.076917][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.085752][ T12] Kernel panic - not syncing: Fatal exception [ 90.092230][ T12] Kernel Offset: disabled [ 90.096557][ T12] Rebooting in 86400 seconds..