./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor799915144 <...> [ 87.098229][ T976] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.122' (ED25519) to the list of known hosts. execve("./syz-executor799915144", ["./syz-executor799915144"], 0x7ffdbe77ab80 /* 10 vars */) = 0 brk(NULL) = 0x55557c292000 brk(0x55557c292d00) = 0x55557c292d00 arch_prctl(ARCH_SET_FS, 0x55557c292380) = 0 set_tid_address(0x55557c292650) = 5838 set_robust_list(0x55557c292660, 24) = 0 rseq(0x55557c292ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor799915144", 4096) = 27 getrandom("\x83\x44\x36\x8b\x83\xb4\x1a\x1f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557c292d00 brk(0x55557c2b3d00) = 0x55557c2b3d00 brk(0x55557c2b4000) = 0x55557c2b4000 mprotect(0x7f369724f000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 openat(AT_FDCWD, "/proc/self/make-it-fail", O_WRONLY) = 3 close(3) = 0 openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_WRONLY) = 3 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 mkdir("./syzkaller.cC0mDs", 0700) = 0 chmod("./syzkaller.cC0mDs", 0777) = 0 chdir("./syzkaller.cC0mDs") = 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(0x55557c292660, 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) = 3 [pid 5838] <... clone resumed>, child_tidptr=0x55557c292650) = 5839 [pid 5839] write(3, "1000", 4) = 4 [pid 5839] close(3) = 0 [pid 5839] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5839] write(1, "executing program\n", 18) = 18 [pid 5839] memfd_create("syzkaller", 0) = 3 [pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f368ec00000 [pid 5839] 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"..., 16777216) = 16777216 [pid 5839] munmap(0x7f368ec00000, 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 [ 92.243810][ T5839] loop0: detected capacity change from 0 to 32768 [ 92.290514][ T5839] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor799 (5839) [ 92.321340][ T5839] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 92.337757][ T5839] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 92.470836][ T5839] BTRFS info (device loop0): rebuilding free space tree [ 92.499566][ T5839] BTRFS info (device loop0): disabling free space tree [ 92.506789][ T5839] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 5839] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,compress=no,clear_cache,noacl,max_inline=074t,barrier,nospace_cache,") = 0 [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) = 4 [pid 5839] ioctl(4, LOOP_CLR_FD) = 0 [ 92.516871][ T5839] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5839] close(4) = 0 [pid 5839] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 5839] write(4, "7", 1) = 1 [ 92.616835][ T5839] FAULT_INJECTION: forcing a failure. [ 92.616835][ T5839] name failslab, interval 1, probability 0, space 0, times 1 [ 92.630302][ T5839] CPU: 0 UID: 0 PID: 5839 Comm: syz-executor799 Not tainted 6.14.0-rc2-next-20250214-syzkaller #0 [ 92.630325][ T5839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 92.630338][ T5839] Call Trace: [ 92.630346][ T5839] [ 92.630353][ T5839] dump_stack_lvl+0x241/0x360 [ 92.630406][ T5839] ? __pfx_dump_stack_lvl+0x10/0x10 [ 92.630424][ T5839] ? __pfx__printk+0x10/0x10 [ 92.630478][ T5839] ? fs_reclaim_acquire+0x93/0x130 [ 92.630500][ T5839] ? __pfx___might_resched+0x10/0x10 [ 92.630521][ T5839] ? find_inode+0x405/0x480 [ 92.630548][ T5839] should_fail_ex+0x40a/0x550 [ 92.630574][ T5839] should_failslab+0xac/0x100 [ 92.630598][ T5839] ? btrfs_iget+0x1b7/0x2b0 [ 92.630611][ T5839] kmem_cache_alloc_noprof+0x70/0x380 [ 92.630643][ T5839] btrfs_iget+0x1b7/0x2b0 [ 92.630656][ T5839] ? lockdep_hardirqs_on+0x99/0x150 [ 92.630681][ T5839] ? __pfx_btrfs_iget+0x10/0x10 [ 92.630693][ T5839] ? btrfs_lookup_dentry+0x382/0x1640 [ 92.630715][ T5839] ? btrfs_lookup_dentry+0x382/0x1640 [ 92.630740][ T5839] btrfs_lookup_dentry+0x407/0x1640 [ 92.630775][ T5839] ? __pfx_btrfs_lookup_dentry+0x10/0x10 [ 92.630796][ T5839] ? d_alloc_parallel+0x14dd/0x1630 [ 92.630831][ T5839] ? d_alloc_parallel+0x311/0x1630 [ 92.630860][ T5839] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 92.630911][ T5839] btrfs_lookup+0x1d/0x40 [ 92.630934][ T5839] __lookup_slow+0x296/0x400 [ 92.630958][ T5839] ? __pfx___lookup_slow+0x10/0x10 [ 92.630997][ T5839] ? lookup_fast+0x1a8/0x5a0 [ 92.631019][ T5839] lookup_slow+0x53/0x70 [ 92.631039][ T5839] walk_component+0x2eb/0x410 [ 92.631060][ T5839] path_lookupat+0x169/0x440 [ 92.631089][ T5839] filename_lookup+0x2a6/0x670 [ 92.631107][ T5839] ? __virt_addr_valid+0x183/0x530 [ 92.631134][ T5839] ? __pfx_filename_lookup+0x10/0x10 [ 92.631186][ T5839] ? strncpy_from_user+0x150/0x280 [ 92.631213][ T5839] ? getname_flags+0x1e3/0x530 [ 92.631240][ T5839] user_path_at+0x3a/0x60 [ 92.631260][ T5839] do_sys_truncate+0xa4/0x190 [ 92.631280][ T5839] ? __pfx_do_sys_truncate+0x10/0x10 [ 92.631301][ T5839] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 92.631327][ T5839] ? do_syscall_64+0x100/0x230 [ 92.631353][ T5839] __x64_sys_truncate+0x5b/0x70 [ 92.631375][ T5839] do_syscall_64+0xf3/0x230 [ 92.631393][ T5839] ? clear_bhb_loop+0x35/0x90 [ 92.631418][ T5839] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.631438][ T5839] RIP: 0033:0x7f36971ddcd9 [ 92.631470][ T5839] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1b 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 92.631482][ T5839] RSP: 002b:00007ffe4ef751c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 92.631501][ T5839] RAX: ffffffffffffffda RBX: 00007ffe4ef751f0 RCX: 00007f36971ddcd9 [ 92.631512][ T5839] RDX: 00007f36971dcda0 RSI: 0000000000000f60 RDI: 0000400000000080 [pid 5839] truncate("./file1", 3936) = -1 ENOMEM (Cannot allocate memory) [pid 5839] open(NULL, O_RDWR|O_CREAT|O_DIRECT|O_NOATIME|FASYNC, 01210) = -1 EFAULT (Bad address) [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=2 /* 0.02 s */, si_stime=28 /* 0.28 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 [ 92.631522][ T5839] RBP: 0000000000000001 R08: 00007ffe4ef74f67 R09: 00007ffe4ef75210 [ 92.631532][ T5839] R10: 0000000000000001 R11: 0000000000000246 R12: 0000400000000080 [ 92.631542][ T5839] R13: 0000000000000000 R14: 431bde82d7b634db R15: 00007ffe4ef75230 [ 92.631580][ T5839] 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, 0x55557c2936f0 /* 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 [ 93.004547][ T5838] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 93.074147][ T5838] VFS: Busy inodes after unmount of loop0 (btrfs) [ 93.074273][ T5838] ------------[ cut here ]------------ [ 93.086525][ T5838] kernel BUG at fs/super.c:652! [ 93.091627][ T5838] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 93.098589][ T5838] CPU: 1 UID: 0 PID: 5838 Comm: syz-executor799 Not tainted 6.14.0-rc2-next-20250214-syzkaller #0 [ 93.109163][ T5838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 93.119228][ T5838] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 93.125370][ T5838] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a9 1a ee ff 48 8b 13 48 c7 c7 c0 c4 38 8c 4c 89 e6 e8 87 85 eb fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 93.144974][ T5838] RSP: 0018:ffffc9000418fbb0 EFLAGS: 00010246 [ 93.151023][ T5838] RAX: 000000000000002f RBX: ffffffff8f0a2e00 RCX: 0bff0fe537d8a400 [ 93.158991][ T5838] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 93.166944][ T5838] RBP: 1ffff110066420f0 R08: ffffffff81a16efc R09: 1ffff92000831f10 [ 93.174900][ T5838] R10: dffffc0000000000 R11: fffff52000831f11 R12: ffff888033210668 [ 93.182875][ T5838] R13: dffffc0000000000 R14: ffffffff8c6bfa38 R15: ffff888033210780 [ 93.190861][ T5838] FS: 000055557c292380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 93.199779][ T5838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.206349][ T5838] CR2: 000055557c29b6f8 CR3: 0000000077932000 CR4: 00000000003526f0 [ 93.214311][ T5838] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.222268][ T5838] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.230228][ T5838] Call Trace: [ 93.233494][ T5838] [ 93.236415][ T5838] ? __die_body+0x5f/0xb0 [ 93.240739][ T5838] ? die+0x9e/0xc0 [ 93.244545][ T5838] ? do_trap+0x15a/0x3a0 [ 93.248798][ T5838] ? generic_shutdown_super+0x2ca/0x2d0 [ 93.254348][ T5838] ? do_error_trap+0x1dc/0x2c0 [ 93.259105][ T5838] ? generic_shutdown_super+0x2ca/0x2d0 [ 93.264648][ T5838] ? __pfx_do_error_trap+0x10/0x10 [ 93.269751][ T5838] ? handle_invalid_op+0x34/0x40 [ 93.274681][ T5838] ? generic_shutdown_super+0x2ca/0x2d0 [ 93.280217][ T5838] ? exc_invalid_op+0x38/0x50 [ 93.284883][ T5838] ? asm_exc_invalid_op+0x1a/0x20 [ 93.289902][ T5838] ? __wake_up_klogd+0xcc/0x110 [ 93.294747][ T5838] ? generic_shutdown_super+0x2ca/0x2d0 [ 93.300304][ T5838] kill_anon_super+0x3b/0x70 [ 93.304907][ T5838] btrfs_kill_super+0x41/0x50 [ 93.309587][ T5838] deactivate_locked_super+0xc4/0x130 [ 93.314959][ T5838] cleanup_mnt+0x41f/0x4b0 [ 93.319365][ T5838] ? lockdep_hardirqs_on+0x99/0x150 [ 93.324558][ T5838] task_work_run+0x24f/0x310 [ 93.329142][ T5838] ? __pfx_task_work_run+0x10/0x10 [ 93.334245][ T5838] ? path_umount+0x211/0xf80 [ 93.338834][ T5838] ptrace_notify+0x2d9/0x380 [ 93.343425][ T5838] ? __x64_sys_umount+0x120/0x170 [ 93.348445][ T5838] ? user_path_at+0x44/0x60 [ 93.352940][ T5838] ? __pfx_ptrace_notify+0x10/0x10 [ 93.358044][ T5838] ? kmem_cache_free+0x195/0x410 [ 93.362982][ T5838] ? __x64_sys_umount+0x120/0x170 [ 93.368001][ T5838] syscall_exit_work+0xc7/0x1d0 [ 93.372848][ T5838] syscall_exit_to_user_mode+0x24a/0x340 [ 93.378474][ T5838] do_syscall_64+0x100/0x230 [ 93.383053][ T5838] ? clear_bhb_loop+0x35/0x90 [ 93.387723][ T5838] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 93.393611][ T5838] RIP: 0033:0x7f36971def37 [ 93.398014][ T5838] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 93.417703][ T5838] RSP: 002b:00007ffe4ef740d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 93.426116][ T5838] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f36971def37 [ 93.434078][ T5838] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe4ef74190 [ 93.442053][ T5838] RBP: 00007ffe4ef74190 R08: 0000000000000000 R09: 0000000000000000 [ 93.450026][ T5838] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe4ef75210 [ 93.457992][ T5838] R13: 000055557c2936c0 R14: 431bde82d7b634db R15: 00007ffe4ef75230 [ 93.465960][ T5838] [ 93.468965][ T5838] Modules linked in: [ 93.473118][ T5838] ---[ end trace 0000000000000000 ]--- [ 93.478722][ T5838] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 93.484919][ T5838] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a9 1a ee ff 48 8b 13 48 c7 c7 c0 c4 38 8c 4c 89 e6 e8 87 85 eb fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 93.504960][ T5838] RSP: 0018:ffffc9000418fbb0 EFLAGS: 00010246 [ 93.511118][ T5838] RAX: 000000000000002f RBX: ffffffff8f0a2e00 RCX: 0bff0fe537d8a400 [ 93.519115][ T5838] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 93.527108][ T5838] RBP: 1ffff110066420f0 R08: ffffffff81a16efc R09: 1ffff92000831f10 [ 93.535084][ T5838] R10: dffffc0000000000 R11: fffff52000831f11 R12: ffff888033210668 [ 93.543081][ T5838] R13: dffffc0000000000 R14: ffffffff8c6bfa38 R15: ffff888033210780 [ 93.551101][ T5838] FS: 000055557c292380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 93.560064][ T5838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.566674][ T5838] CR2: 000000000045bdd0 CR3: 0000000077932000 CR4: 00000000003526f0 [ 93.574634][ T5838] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.582652][ T5838] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.590688][ T5838] Kernel panic - not syncing: Fatal exception [ 93.597002][ T5838] Kernel Offset: disabled [ 93.601312][ T5838] Rebooting in 86400 seconds..