./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2008629258 <...> Warning: Permanently added '10.128.1.39' (ED25519) to the list of known hosts. execve("./syz-executor2008629258", ["./syz-executor2008629258"], 0x7ffefda8c8a0 /* 10 vars */) = 0 brk(NULL) = 0x555568eb3000 brk(0x555568eb3d00) = 0x555568eb3d00 arch_prctl(ARCH_SET_FS, 0x555568eb3380) = 0 set_tid_address(0x555568eb3650) = 5080 set_robust_list(0x555568eb3660, 24) = 0 rseq(0x555568eb3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2008629258", 4096) = 28 getrandom("\x64\x1f\xbd\xbc\xa7\xeb\x70\x89", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568eb3d00 brk(0x555568ed4d00) = 0x555568ed4d00 brk(0x555568ed5000) = 0x555568ed5000 mprotect(0x7f3e49674000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 mkdir("./syzkaller.Zpv3gb", 0700) = 0 chmod("./syzkaller.Zpv3gb", 0777) = 0 chdir("./syzkaller.Zpv3gb") = 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 5081 attached , child_tidptr=0x555568eb3650) = 5081 [pid 5081] set_robust_list(0x555568eb3660, 24) = 0 [pid 5081] chdir("./0") = 0 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] setpgid(0, 0) = 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1000", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] write(1, "executing program\n", 18executing program ) = 18 [pid 5081] memfd_create("syzkaller", 0) = 3 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e41000000 [pid 5081] write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\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\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00\x8f\x24\x2d\x5f\x49\x6d\x50\x0b\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5081] munmap(0x7f3e41000000, 138412032) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5081] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5081] close(3) = 0 [pid 5081] close(4) = 0 [pid 5081] mkdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 0777) = 0 syzkaller login: [ 60.163563][ T5081] loop0: detected capacity change from 0 to 4096 [ 60.184389][ T5081] ======================================================= [ 60.184389][ T5081] WARNING: The mand mount option has been deprecated and [ 60.184389][ T5081] and is ignored by this kernel. Remove the mand [ 60.184389][ T5081] option from the mount to silence this warning. [pid 5081] mount("/dev/loop0", "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", "ntfs3", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_SILENT|MS_STRICTATIME, "nohidden,nohidden,prealloc,sparse,acl,") = 0 [pid 5081] openat(AT_FDCWD, "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", O_RDONLY|O_DIRECTORY) = 3 [pid 5081] chdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f") = 0 [ 60.184389][ T5081] ======================================================= [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5081] open(".", O_RDONLY) = 4 [pid 5081] fcntl(4, F_NOTIFY, DN_ACCESS|DN_CREATE|DN_DELETE|DN_RENAME|DN_ATTRIB|DN_MULTISHOT) = 0 [pid 5081] openat(AT_FDCWD, ".", O_RDONLY) = 5 [pid 5081] fchmod(5, 000) = 0 [pid 5081] exit_group(0) = ? [pid 5081] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- 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, 0x555568eb46f0 /* 4 entries */, 32768) = 176 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 60.294765][ T5081] ntfs3: loop0: ino=5, "/" attr_set_size [ 60.301363][ T5081] ntfs3: loop0: Mark volume as dirty due to NTFS errors newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 umount2("\x2e\x2f\x30\x2f\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("\x2e\x2f\x30\x2f\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "\x2e\x2f\x30\x2f\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("\x2e\x2f\x30\x2f\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "\x2e\x2f\x30\x2f\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 60.383423][ T35] ------------[ cut here ]------------ [ 60.389116][ T35] kernel BUG at fs/notify/dnotify/dnotify.c:135! [ 60.395775][ T35] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 60.402735][ T35] CPU: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.9.0-syzkaller-08995-g0450d2083be6 #0 [ 60.412374][ T35] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 60.422429][ T35] Workqueue: events_unbound fsnotify_mark_destroy_workfn getdents64(4, 0x555568ebc730 /* 2 entries */, 32768) = 48 getdents64(4, 0x555568ebc730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("\x2e\x2f\x30\x2f\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38") = 0 getdents64(3, 0x555568eb46f0 /* 0 entries */, 32768) = 0 close(3) = 0 [ 60.429496][ T35] RIP: 0010:dnotify_free_mark+0x58/0x60 [ 60.435125][ T35] Code: 89 df e8 fb 8c da ff 48 83 3b 00 75 17 e8 80 9d 78 ff 48 8b 3d e1 04 bc 0b 4c 89 f6 5b 41 5e e9 2e 0b cf ff e8 69 9d 78 ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 60.454759][ T35] RSP: 0018:ffffc90000ab7ae8 EFLAGS: 00010293 [ 60.460873][ T35] RAX: ffffffff821d9357 RBX: ffff88807527f080 RCX: ffff8880176f8000 [ 60.469026][ T35] RDX: 0000000000000000 RSI: ffffffff8bcab840 RDI: ffff88807527f000 rmdir("./0") = 0 [ 60.477011][ T35] RBP: ffffc90000ab7bb0 R08: ffffffff92f6a63f R09: 1ffffffff25ed4c7 [ 60.484999][ T35] R10: dffffc0000000000 R11: ffffffff821d9300 R12: ffff88801879d800 [ 60.492980][ T35] R13: ffffc90000ab7b40 R14: ffff88807527f000 R15: ffff88807527f000 [ 60.501048][ T35] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 60.509981][ T35] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.516563][ T35] CR2: 00007ffeac052b18 CR3: 0000000079d46000 CR4: 00000000003506f0 [ 60.524564][ T35] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.532536][ T35] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.540501][ T35] Call Trace: [ 60.543782][ T35] [ 60.546707][ T35] ? __die_body+0x88/0xe0 [ 60.551128][ T35] ? die+0xcf/0x110 [ 60.554932][ T35] ? do_trap+0x15a/0x3a0 [ 60.559173][ T35] ? dnotify_free_mark+0x58/0x60 [ 60.564138][ T35] ? do_error_trap+0x1dc/0x2c0 [ 60.568917][ T35] ? dnotify_free_mark+0x58/0x60 [ 60.574073][ T35] ? __pfx_do_error_trap+0x10/0x10 [ 60.579181][ T35] ? report_bug+0x3e8/0x500 [ 60.583717][ T35] ? handle_invalid_op+0x34/0x40 [ 60.588750][ T35] ? dnotify_free_mark+0x58/0x60 [ 60.593859][ T35] ? exc_invalid_op+0x38/0x50 [ 60.598537][ T35] ? asm_exc_invalid_op+0x1a/0x20 [ 60.603555][ T35] ? __pfx_dnotify_free_mark+0x10/0x10 [ 60.609023][ T35] ? dnotify_free_mark+0x57/0x60 [ 60.614134][ T35] ? dnotify_free_mark+0x58/0x60 [ 60.619097][ T35] ? dnotify_free_mark+0x57/0x60 [ 60.624115][ T35] fsnotify_mark_destroy_workfn+0x2cf/0x350 [ 60.630018][ T35] ? __pfx_fsnotify_mark_destroy_workfn+0x10/0x10 [ 60.636435][ T35] ? process_scheduled_works+0x945/0x1830 [ 60.642150][ T35] process_scheduled_works+0xa2c/0x1830 [ 60.647698][ T35] ? __pfx_process_scheduled_works+0x10/0x10 [ 60.653679][ T35] ? assign_work+0x364/0x3d0 [ 60.658271][ T35] worker_thread+0x86d/0xd70 [ 60.662863][ T35] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 60.668850][ T35] ? __kthread_parkme+0x169/0x1d0 [ 60.673872][ T35] ? __pfx_worker_thread+0x10/0x10 [ 60.678974][ T35] kthread+0x2f0/0x390 mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 60.683148][ T35] ? __pfx_worker_thread+0x10/0x10 [ 60.688316][ T35] ? __pfx_kthread+0x10/0x10 [ 60.692898][ T35] ret_from_fork+0x4b/0x80 [ 60.697361][ T35] ? __pfx_kthread+0x10/0x10 [ 60.701942][ T35] ret_from_fork_asm+0x1a/0x30 [ 60.706707][ T35] [ 60.709715][ T35] Modules linked in: [ 60.713923][ T35] ---[ end trace 0000000000000000 ]--- [ 60.719607][ T35] RIP: 0010:dnotify_free_mark+0x58/0x60 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 [ 60.725608][ T35] Code: 89 df e8 fb 8c da ff 48 83 3b 00 75 17 e8 80 9d 78 ff 48 8b 3d e1 04 bc 0b 4c 89 f6 5b 41 5e e9 2e 0b cf ff e8 69 9d 78 ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 60.745419][ T35] RSP: 0018:ffffc90000ab7ae8 EFLAGS: 00010293 [ 60.751663][ T35] RAX: ffffffff821d9357 RBX: ffff88807527f080 RCX: ffff8880176f8000 [ 60.759774][ T35] RDX: 0000000000000000 RSI: ffffffff8bcab840 RDI: ffff88807527f000 [ 60.768790][ T35] RBP: ffffc90000ab7bb0 R08: ffffffff92f6a63f R09: 1ffffffff25ed4c7 [ 60.776831][ T35] R10: dffffc0000000000 R11: ffffffff821d9300 R12: ffff88801879d800 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555568eb3650) = 5083 ./strace-static-x86_64: Process 5083 attached [pid 5083] set_robust_list(0x555568eb3660, 24) = 0 [pid 5083] chdir("./1") = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 60.785136][ T35] R13: ffffc90000ab7b40 R14: ffff88807527f000 R15: ffff88807527f000 [ 60.793392][ T35] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 60.802652][ T35] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.809324][ T35] CR2: 0000555568eb3650 CR3: 0000000024ecc000 CR4: 00000000003506f0 [ 60.817991][ T35] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.826234][ T35] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.834725][ T35] Kernel panic - not syncing: Fatal exception [ 60.840878][ T35] Kernel Offset: disabled [ 60.845301][ T35] Rebooting in 86400 seconds..