./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor337856874 <...> Warning: Permanently added '10.128.10.31' (ED25519) to the list of known hosts. execve("./syz-executor337856874", ["./syz-executor337856874"], 0x7ffe12974390 /* 10 vars */) = 0 brk(NULL) = 0x55558d59e000 brk(0x55558d59ed00) = 0x55558d59ed00 arch_prctl(ARCH_SET_FS, 0x55558d59e380) = 0 set_tid_address(0x55558d59e650) = 5828 set_robust_list(0x55558d59e660, 24) = 0 rseq(0x55558d59eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor337856874", 4096) = 27 getrandom("\x88\x6e\x04\x40\xf5\x59\x8d\x16", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558d59ed00 brk(0x55558d5bfd00) = 0x55558d5bfd00 brk(0x55558d5c0000) = 0x55558d5c0000 mprotect(0x7f393fcf9000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5829 attached [pid 5829] set_robust_list(0x55558d59e660, 24 [pid 5828] <... clone resumed>, child_tidptr=0x55558d59e650) = 5829 [pid 5829] <... set_robust_list resumed>) = 0 [pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5829] getppid() = 0 [pid 5829] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5829] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5829] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5829] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5829] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5829] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5829] unshare(CLONE_NEWNS) = 0 [pid 5829] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5829] unshare(CLONE_NEWIPC) = 0 [pid 5829] unshare(CLONE_NEWCGROUP) = 0 [pid 5829] unshare(CLONE_NEWUTS) = 0 [pid 5829] unshare(CLONE_SYSVSEM) = 0 [pid 5829] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "16777216", 8) = 8 [pid 5829] close(3) = 0 [pid 5829] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "536870912", 9) = 9 [pid 5829] close(3) = 0 [pid 5829] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "1024", 4) = 4 [pid 5829] close(3) = 0 [pid 5829] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "8192", 4) = 4 [pid 5829] close(3) = 0 [pid 5829] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "1024", 4) = 4 [pid 5829] close(3) = 0 [pid 5829] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "1024", 4) = 4 [pid 5829] close(3) = 0 [pid 5829] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5829] close(3) = 0 [pid 5829] getpid() = 1 [pid 5829] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 536870912 type reg [ 64.977583][ T5829] inum: 536870912:4294967295 [ 64.977583][ T5829] mode=100755 [ 64.977583][ T5829] flags=(15300000) [ 64.977583][ T5829] journal_seq=4 [ 64.977583][ T5829] hash_seed=8469d717004af4ef [ 64.977583][ T5829] hash_type=siphash [ 64.977583][ T5829] bi_size=10 [ 64.977583][ T5829] bi_sectors=8 [ 64.977583][ T5829] bi_version=0 [ 64.977583][ T5829] bi_atime=2780562352 [ 64.977583][ T5829] bi_ctime=2780562352 [ 64.977583][ T5829] bi_mtime=2780562352 [ 64.977583][ T5829] bi_otime=2780562352 [ 64.977583][ T5829] bi_uid=0 [ 64.977583][ T5829] bi_gid=0 [ 64.977583][ T5829] bi_nlink=0 [ 64.977583][ T5829] bi_generation=0 [ 64.977583][ T5829] bi_dev=2 [ 64.977583][ T5829] bi_data_checksum=0 [ 64.977583][ T5829] bi_compression=0 [ 64.977583][ T5829] bi_project=0 [ 64.977583][ T5829] bi_background_compression=0 [pid 5829] openat(AT_FDCWD, "./file1", O_RDONLY|O_CREAT|FASYNC, 000) = -1 EEXIST (File exists) [pid 5829] exit_group(1) = ? [ 64.977583][ T5829] bi_data_replicas=0 [ 64.977583][ T5829] bi_promote_target=0 [ 64.977583][ T5829] bi_foreground_target=0 [ 64.977583][ T5829] bi_background_target=0 [ 64.977583][ T5829] bi_erasure_code=0 [ 64.977583][ T5829] bi_fields_set=4096 [ 64.977583][ T5829] bi_dir=4330382808765833931 [ 64.977583][ T5829] bi_dir_offset=0 [ 64.977583][ T5829] bi_subvol=0 [ 64.977583][ T5829] bi_parent_subvol=0 [ 64.977583][ T5829] bi_nocow=0 [ 64.977583][ T5829] bi_depth=0 [ 64.977583][ T5829] bi_inodes_32bit=0 [ 65.145817][ T5829] bcachefs (loop0): shutting down [ 65.173659][ T5829] VFS: Busy inodes after unmount of loop0 (bcachefs) [ 65.173843][ T5829] ------------[ cut here ]------------ [ 65.186402][ T5829] kernel BUG at fs/super.c:652! [ 65.195340][ T5829] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 65.202328][ T5829] CPU: 0 UID: 0 PID: 5829 Comm: syz-executor337 Not tainted 6.14.0-rc1-syzkaller-00187-g8f6629c004b1 #0 [ 65.213433][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 65.223503][ T5829] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 65.229702][ T5829] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 69 55 ee ff 48 8b 13 48 c7 c7 40 8f 18 8c 4c 89 e6 e8 07 e6 f1 fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 65.249310][ T5829] RSP: 0018:ffffc90003cb7b88 EFLAGS: 00010246 [ 65.255380][ T5829] RAX: 0000000000000032 RBX: ffffffff8ef5ab80 RCX: c322cf18e9551300 [ 65.263347][ T5829] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 65.271312][ T5829] RBP: 1ffff1100ec1c4f0 R08: ffffffff819f140c R09: 1ffff92000796f0c [ 65.279281][ T5829] R10: dffffc0000000000 R11: fffff52000796f0d R12: ffff8880760e2668 [ 65.287248][ T5829] R13: dffffc0000000000 R14: ffffffff8c5319d8 R15: ffff8880760e2780 [ 65.295217][ T5829] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 65.304165][ T5829] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.310750][ T5829] CR2: 00007f393fcfd130 CR3: 000000000e738000 CR4: 00000000003526f0 [ 65.318725][ T5829] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.326690][ T5829] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.334655][ T5829] Call Trace: [ 65.337931][ T5829] [ 65.340854][ T5829] ? __die_body+0x5f/0xb0 [ 65.345204][ T5829] ? die+0x9e/0xc0 [ 65.348928][ T5829] ? do_trap+0x15a/0x3a0 [ 65.353192][ T5829] ? generic_shutdown_super+0x2ca/0x2d0 [ 65.358746][ T5829] ? do_error_trap+0x1dc/0x2c0 [ 65.363503][ T5829] ? generic_shutdown_super+0x2ca/0x2d0 [ 65.369048][ T5829] ? __pfx_do_error_trap+0x10/0x10 [ 65.374153][ T5829] ? report_bug+0x3e8/0x500 [ 65.378672][ T5829] ? handle_invalid_op+0x34/0x40 [ 65.383609][ T5829] ? generic_shutdown_super+0x2ca/0x2d0 [ 65.389156][ T5829] ? exc_invalid_op+0x38/0x50 [ 65.393832][ T5829] ? asm_exc_invalid_op+0x1a/0x20 [ 65.398854][ T5829] ? __wake_up_klogd+0xcc/0x110 [ 65.403701][ T5829] ? generic_shutdown_super+0x2ca/0x2d0 [ 65.409243][ T5829] ? generic_shutdown_super+0x2c9/0x2d0 [ 65.414786][ T5829] bch2_kill_sb+0x41/0x50 [ 65.419123][ T5829] deactivate_locked_super+0xc4/0x130 [ 65.424498][ T5829] cleanup_mnt+0x41f/0x4b0 [ 65.428916][ T5829] ? lockdep_hardirqs_on+0x99/0x150 [ 65.434121][ T5829] task_work_run+0x24f/0x310 [ 65.438712][ T5829] ? __pfx_task_work_run+0x10/0x10 [ 65.443821][ T5829] ? do_exit+0xa25/0x28e0 [ 65.448148][ T5829] ? do_exit+0xa25/0x28e0 [ 65.452474][ T5829] do_exit+0xa2a/0x28e0 [ 65.456635][ T5829] ? __pfx_do_exit+0x10/0x10 [ 65.461243][ T5829] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.467222][ T5829] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 65.473555][ T5829] ? _raw_spin_unlock_irq+0x23/0x50 [ 65.478751][ T5829] ? lockdep_hardirqs_on+0x99/0x150 [ 65.483945][ T5829] do_group_exit+0x207/0x2c0 [ 65.488530][ T5829] __x64_sys_exit_group+0x3f/0x40 [ 65.493550][ T5829] x64_sys_call+0x26a8/0x26b0 [ 65.498224][ T5829] do_syscall_64+0xf3/0x230 [ 65.502733][ T5829] ? clear_bhb_loop+0x35/0x90 [ 65.507419][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 65.513310][ T5829] RIP: 0033:0x7f393fc7db09 [ 65.517731][ T5829] Code: Unable to access opcode bytes at 0x7f393fc7dadf. [ 65.524894][ T5829] RSP: 002b:00007ffd51e47678 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 65.533322][ T5829] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f393fc7db09 [ 65.541293][ T5829] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 65.549271][ T5829] RBP: 00007f393fcff2b0 R08: ffffffffffffffb8 R09: 0000000000000006 [ 65.557243][ T5829] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f393fcff2b0 [ 65.565206][ T5829] R13: 0000000000000000 R14: 00007f393fd00020 R15: 00007f393fc4c050 [ 65.573181][ T5829] [ 65.576189][ T5829] Modules linked in: [ 65.580211][ T5829] ---[ end trace 0000000000000000 ]--- [ 65.585753][ T5829] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 65.592004][ T5829] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 69 55 ee ff 48 8b 13 48 c7 c7 40 8f 18 8c 4c 89 e6 e8 07 e6 f1 fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 65.611707][ T5829] RSP: 0018:ffffc90003cb7b88 EFLAGS: 00010246 [ 65.617841][ T5829] RAX: 0000000000000032 RBX: ffffffff8ef5ab80 RCX: c322cf18e9551300 [ 65.625845][ T5829] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 65.633943][ T5829] RBP: 1ffff1100ec1c4f0 R08: ffffffff819f140c R09: 1ffff92000796f0c [ 65.642069][ T5829] R10: dffffc0000000000 R11: fffff52000796f0d R12: ffff8880760e2668 [ 65.650093][ T5829] R13: dffffc0000000000 R14: ffffffff8c5319d8 R15: ffff8880760e2780 [ 65.658122][ T5829] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 65.667081][ T5829] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.673653][ T5829] CR2: 00007f393fcfd130 CR3: 000000000e738000 CR4: 00000000003526f0 [ 65.681658][ T5829] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.689672][ T5829] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.697729][ T5829] Kernel panic - not syncing: Fatal exception [ 65.704074][ T5829] Kernel Offset: disabled [ 65.708392][ T5829] Rebooting in 86400 seconds..