./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor919990094 <...> [ 87.084525][ T874] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.175' (ED25519) to the list of known hosts. execve("./syz-executor919990094", ["./syz-executor919990094"], 0x7fff93b9b8a0 /* 10 vars */) = 0 brk(NULL) = 0x55556e8ea000 brk(0x55556e8ead00) = 0x55556e8ead00 arch_prctl(ARCH_SET_FS, 0x55556e8ea380) = 0 set_tid_address(0x55556e8ea650) = 5837 set_robust_list(0x55556e8ea660, 24) = 0 rseq(0x55556e8eaca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor919990094", 4096) = 27 getrandom("\xa9\x48\x4c\x34\x92\xac\xdc\x0a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556e8ead00 brk(0x55556e90bd00) = 0x55556e90bd00 brk(0x55556e90c000) = 0x55556e90c000 mprotect(0x7fe668e24000, 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.ROtxgA", 0700) = 0 chmod("./syzkaller.ROtxgA", 0777) = 0 chdir("./syzkaller.ROtxgA") = 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 5838 attached [pid 5838] set_robust_list(0x55556e8ea660, 24 [pid 5837] <... clone resumed>, child_tidptr=0x55556e8ea650) = 5838 [pid 5838] <... set_robust_list resumed>) = 0 [pid 5838] chdir("./0") = 0 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5838] setpgid(0, 0) = 0 [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "1000", 4) = 4 [pid 5838] close(3) = 0 [pid 5838] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5838] write(1, "executing program\n", 18) = 18 [pid 5838] memfd_create("syzkaller", 0) = 3 [pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe660800000 [pid 5838] 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 5838] munmap(0x7fe660800000, 138412032) = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5838] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5838] close(3) = 0 [pid 5838] close(4) = 0 [pid 5838] mkdir("./bus", 0777) = 0 [ 88.408440][ T5838] loop0: detected capacity change from 0 to 32768 [ 88.443376][ T5838] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor919 (5838) [ 88.480907][ T5838] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 88.493522][ T5838] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 88.612105][ T5838] BTRFS info (device loop0): rebuilding free space tree [ 88.649455][ T5838] BTRFS info (device loop0): disabling free space tree [pid 5838] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,compress=no,clear_cache,noacl,max_inline=074t,barrier,nospace_cache,") = 0 [pid 5838] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5838] chdir("./bus") = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5838] ioctl(4, LOOP_CLR_FD) = 0 [ 88.656552][ T5838] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 88.666822][ T5838] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5838] close(4) = 0 [pid 5838] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 5838] write(4, "7", 1) = 1 [ 88.755181][ T5838] FAULT_INJECTION: forcing a failure. [ 88.755181][ T5838] name failslab, interval 1, probability 0, space 0, times 1 [ 88.768548][ T5838] CPU: 1 UID: 0 PID: 5838 Comm: syz-executor919 Not tainted 6.14.0-rc2-next-20250214-syzkaller #0 [ 88.768570][ T5838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 88.768584][ T5838] Call Trace: [ 88.768591][ T5838] [ 88.768599][ T5838] dump_stack_lvl+0x241/0x360 [ 88.768649][ T5838] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.768668][ T5838] ? __pfx__printk+0x10/0x10 [ 88.768688][ T5838] ? fs_reclaim_acquire+0x93/0x130 [ 88.768709][ T5838] ? __pfx___might_resched+0x10/0x10 [ 88.768730][ T5838] ? find_inode+0x405/0x480 [ 88.768754][ T5838] should_fail_ex+0x40a/0x550 [ 88.768784][ T5838] should_failslab+0xac/0x100 [ 88.768808][ T5838] ? btrfs_iget+0x1b7/0x2b0 [ 88.768819][ T5838] kmem_cache_alloc_noprof+0x70/0x380 [ 88.768846][ T5838] btrfs_iget+0x1b7/0x2b0 [ 88.768858][ T5838] ? lockdep_hardirqs_on+0x99/0x150 [ 88.768882][ T5838] ? __pfx_btrfs_iget+0x10/0x10 [ 88.768895][ T5838] ? btrfs_lookup_dentry+0x382/0x1640 [ 88.768918][ T5838] ? btrfs_lookup_dentry+0x382/0x1640 [ 88.768940][ T5838] btrfs_lookup_dentry+0x407/0x1640 [ 88.768970][ T5838] ? __pfx_btrfs_lookup_dentry+0x10/0x10 [ 88.768987][ T5838] ? d_alloc_parallel+0x14dd/0x1630 [ 88.769017][ T5838] ? d_alloc_parallel+0x311/0x1630 [ 88.769045][ T5838] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 88.769091][ T5838] btrfs_lookup+0x1d/0x40 [ 88.769113][ T5838] __lookup_slow+0x296/0x400 [ 88.769136][ T5838] ? __pfx___lookup_slow+0x10/0x10 [ 88.769179][ T5838] ? lookup_fast+0x1a8/0x5a0 [ 88.769203][ T5838] lookup_slow+0x53/0x70 [ 88.769222][ T5838] walk_component+0x2eb/0x410 [ 88.769244][ T5838] path_lookupat+0x169/0x440 [ 88.769274][ T5838] filename_lookup+0x2a6/0x670 [ 88.769291][ T5838] ? __virt_addr_valid+0x183/0x530 [ 88.769318][ T5838] ? __pfx_filename_lookup+0x10/0x10 [ 88.769373][ T5838] ? strncpy_from_user+0x150/0x280 [ 88.769400][ T5838] ? getname_flags+0x1e3/0x530 [ 88.769430][ T5838] user_path_at+0x3a/0x60 [ 88.769449][ T5838] do_sys_truncate+0xa4/0x190 [ 88.769470][ T5838] ? __pfx_do_sys_truncate+0x10/0x10 [ 88.769490][ T5838] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 88.769517][ T5838] ? do_syscall_64+0x100/0x230 [ 88.769543][ T5838] __x64_sys_truncate+0x5b/0x70 [ 88.769564][ T5838] do_syscall_64+0xf3/0x230 [ 88.769582][ T5838] ? clear_bhb_loop+0x35/0x90 [ 88.769607][ T5838] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.769626][ T5838] RIP: 0033:0x7fe668db2cd9 [ 88.769651][ T5838] 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 [ 88.769663][ T5838] RSP: 002b:00007fff5aa002f8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 88.769681][ T5838] RAX: ffffffffffffffda RBX: 00007fff5aa00320 RCX: 00007fe668db2cd9 [ 88.769692][ T5838] RDX: 00007fe668db1da0 RSI: 0000000000000f60 RDI: 0000400000000080 [pid 5838] truncate("./file1", 3936) = -1 ENOMEM (Cannot allocate memory) [pid 5838] exit_group(0) = ? [pid 5838] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5838, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=30 /* 0.30 s */} --- umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 88.769703][ T5838] RBP: 0000000000000001 R08: 00007fff5aa00097 R09: 00007fff5aa00340 [ 88.769713][ T5838] R10: 0000000000000001 R11: 0000000000000246 R12: 0000400000000080 [ 88.769723][ T5838] R13: 0000000000000000 R14: 431bde82d7b634db R15: 00007fff5aa00360 [ 88.769759][ T5838] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55556e8eb6f0 /* 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 [ 89.159974][ T5837] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 89.231214][ T5837] VFS: Busy inodes after unmount of loop0 (btrfs) [ 89.231387][ T5837] ------------[ cut here ]------------ [ 89.244674][ T5837] kernel BUG at fs/super.c:652! [ 89.254953][ T5837] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 89.261908][ T5837] CPU: 1 UID: 0 PID: 5837 Comm: syz-executor919 Not tainted 6.14.0-rc2-next-20250214-syzkaller #0 [ 89.272470][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 89.282503][ T5837] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 89.288651][ T5837] 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 [ 89.308255][ T5837] RSP: 0018:ffffc9000401fbb0 EFLAGS: 00010246 [ 89.314310][ T5837] RAX: 000000000000002f RBX: ffffffff8f0a2e00 RCX: 9da598dcf04ab100 [ 89.322269][ T5837] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 89.330223][ T5837] RBP: 1ffff11006aa70f0 R08: ffffffff81a16efc R09: 1ffff92000803f10 [ 89.338174][ T5837] R10: dffffc0000000000 R11: fffff52000803f11 R12: ffff888035538668 [ 89.346128][ T5837] R13: dffffc0000000000 R14: ffffffff8c6bfa38 R15: ffff888035538780 [ 89.354077][ T5837] FS: 000055556e8ea380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 89.362983][ T5837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.369542][ T5837] CR2: 00007f8e1982d440 CR3: 000000007a090000 CR4: 00000000003526f0 [ 89.377498][ T5837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.385446][ T5837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.393407][ T5837] Call Trace: [ 89.396673][ T5837] [ 89.399589][ T5837] ? __die_body+0x5f/0xb0 [ 89.403904][ T5837] ? die+0x9e/0xc0 [ 89.407611][ T5837] ? do_trap+0x15a/0x3a0 [ 89.411840][ T5837] ? generic_shutdown_super+0x2ca/0x2d0 [ 89.417369][ T5837] ? do_error_trap+0x1dc/0x2c0 [ 89.422115][ T5837] ? generic_shutdown_super+0x2ca/0x2d0 [ 89.427641][ T5837] ? __pfx_do_error_trap+0x10/0x10 [ 89.432733][ T5837] ? handle_invalid_op+0x34/0x40 [ 89.437653][ T5837] ? generic_shutdown_super+0x2ca/0x2d0 [ 89.443175][ T5837] ? exc_invalid_op+0x38/0x50 [ 89.447836][ T5837] ? asm_exc_invalid_op+0x1a/0x20 [ 89.452841][ T5837] ? __wake_up_klogd+0xcc/0x110 [ 89.457672][ T5837] ? generic_shutdown_super+0x2ca/0x2d0 [ 89.463197][ T5837] kill_anon_super+0x3b/0x70 [ 89.467774][ T5837] btrfs_kill_super+0x41/0x50 [ 89.472434][ T5837] deactivate_locked_super+0xc4/0x130 [ 89.477788][ T5837] cleanup_mnt+0x41f/0x4b0 [ 89.482200][ T5837] ? lockdep_hardirqs_on+0x99/0x150 [ 89.487482][ T5837] task_work_run+0x24f/0x310 [ 89.492069][ T5837] ? __pfx_task_work_run+0x10/0x10 [ 89.497167][ T5837] ? path_umount+0x211/0xf80 [ 89.501747][ T5837] ptrace_notify+0x2d9/0x380 [ 89.506322][ T5837] ? __x64_sys_umount+0x120/0x170 [ 89.511332][ T5837] ? user_path_at+0x44/0x60 [ 89.515817][ T5837] ? __pfx_ptrace_notify+0x10/0x10 [ 89.520908][ T5837] ? kmem_cache_free+0x195/0x410 [ 89.525828][ T5837] ? __x64_sys_umount+0x120/0x170 [ 89.530834][ T5837] syscall_exit_work+0xc7/0x1d0 [ 89.535667][ T5837] syscall_exit_to_user_mode+0x24a/0x340 [ 89.541279][ T5837] do_syscall_64+0x100/0x230 [ 89.545848][ T5837] ? clear_bhb_loop+0x35/0x90 [ 89.550512][ T5837] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.556383][ T5837] RIP: 0033:0x7fe668db3f37 [ 89.560774][ T5837] 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 [ 89.580361][ T5837] RSP: 002b:00007fff5a9ff208 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 89.588756][ T5837] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fe668db3f37 [ 89.596707][ T5837] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff5a9ff2c0 [ 89.604658][ T5837] RBP: 00007fff5a9ff2c0 R08: 0000000000000000 R09: 0000000000000000 [ 89.612606][ T5837] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff5aa00340 [ 89.620554][ T5837] R13: 000055556e8eb6c0 R14: 431bde82d7b634db R15: 00007fff5aa00360 [ 89.628509][ T5837] [ 89.631506][ T5837] Modules linked in: [ 89.636017][ T5837] ---[ end trace 0000000000000000 ]--- [ 89.641730][ T5837] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 89.648089][ T5837] 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 [ 89.668257][ T5837] RSP: 0018:ffffc9000401fbb0 EFLAGS: 00010246 [ 89.674362][ T5837] RAX: 000000000000002f RBX: ffffffff8f0a2e00 RCX: 9da598dcf04ab100 [ 89.682676][ T5837] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 89.691597][ T5837] RBP: 1ffff11006aa70f0 R08: ffffffff81a16efc R09: 1ffff92000803f10 [ 89.699616][ T5837] R10: dffffc0000000000 R11: fffff52000803f11 R12: ffff888035538668 [ 89.707623][ T5837] R13: dffffc0000000000 R14: ffffffff8c6bfa38 R15: ffff888035538780 [ 89.715614][ T5837] FS: 000055556e8ea380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 89.724538][ T5837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.731149][ T5837] CR2: 00007f8e1982d440 CR3: 000000007a090000 CR4: 00000000003526f0 [ 89.739148][ T5837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.747149][ T5837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.755127][ T5837] Kernel panic - not syncing: Fatal exception [ 89.761340][ T5837] Kernel Offset: disabled [ 89.765745][ T5837] Rebooting in 86400 seconds..