./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1801466987 <...> DUID 00:04:76:8b:f6:84:a4:3b:36:39:6c:68:e7:10:38:dd:b7:2c forked to background, child pid 3186 [ 25.125319][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 25.136591][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.200' (ECDSA) to the list of known hosts. execve("./syz-executor1801466987", ["./syz-executor1801466987"], 0x7ffcf6ccfde0 /* 10 vars */) = 0 brk(NULL) = 0x555556b22000 brk(0x555556b22c40) = 0x555556b22c40 arch_prctl(ARCH_SET_FS, 0x555556b22300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1801466987", 4096) = 28 brk(0x555556b43c40) = 0x555556b43c40 brk(0x555556b44000) = 0x555556b44000 mprotect(0x7f56eec8b000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3615 attached , child_tidptr=0x555556b225d0) = 3615 [pid 3615] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] setsid() = 1 [pid 3615] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3615] unshare(CLONE_NEWNS) = 0 [pid 3615] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3615] unshare(CLONE_NEWIPC) = 0 [pid 3615] unshare(CLONE_NEWCGROUP) = 0 [pid 3615] unshare(CLONE_NEWUTS) = 0 [pid 3615] unshare(CLONE_SYSVSEM) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "16777216", 8) = 8 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "536870912", 9) = 9 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "8192", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3615] close(3) = 0 [pid 3615] getpid() = 1 [pid 3615] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b eb 80 44 89 e9 80 e1 07 fe c1 38 c1 0f 8c 65 fe ff ff 4c 89 [ 43.165653][ T3615] RSP: 0018:ffffc90003c4faf8 EFLAGS: 00010293 [ 43.171795][ T3615] RAX: ffffffff82f4a92b RBX: 0000000000000001 RCX: ffff8880270b3b00 [ 43.180050][ T3615] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 43.188058][ T3615] RBP: ffff88807366c01f R08: ffffffff82f4a8a1 R09: fffffbfff1c188fe [ 43.196173][ T3615] R10: fffffbfff1c188fe R11: 1ffffffff1c188fd R12: 1ffff1100e2cc8cf [ 43.204346][ T3615] R13: ffff888073d80158 R14: ffff888071664000 R15: ffff888071664678 [ 43.212392][ T3615] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 43.223959][ T3615] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.230609][ T3615] CR2: 000055b0cb914a08 CR3: 000000007f262000 CR4: 00000000003506e0 [ 43.238590][ T3615] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.246601][ T3615] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.254596][ T3615] Call Trace: [ 43.257868][ T3615] [ 43.260849][ T3615] ? udf_new_inode+0xf30/0xf30 [ 43.265675][ T3615] evict+0x2a4/0x620 [ 43.269813][ T3615] udf_sb_free_partitions+0x134/0x570 [ 43.275289][ T3615] udf_put_super+0x10f/0x160 [ 43.279926][ T3615] ? udf_free_in_core_inode+0x20/0x20 [ 43.285325][ T3615] generic_shutdown_super+0x130/0x310 [ 43.290981][ T3615] kill_block_super+0x79/0xd0 [ 43.295694][ T3615] deactivate_locked_super+0xa7/0xf0 [ 43.301458][ T3615] cleanup_mnt+0x4ce/0x560 [ 43.305904][ T3615] ? _raw_spin_unlock_irq+0x1f/0x40 [ 43.311403][ T3615] task_work_run+0x146/0x1c0 [ 43.316072][ T3615] do_exit+0x55e/0x20a0 [ 43.320662][ T3615] ? _raw_spin_unlock_irq+0x1f/0x40 [ 43.326045][ T3615] ? lockdep_hardirqs_on+0x8d/0x130 [ 43.331855][ T3615] ? _raw_spin_unlock_irq+0x2a/0x40 [ 43.337089][ T3615] ? ptrace_notify+0x245/0x340 [ 43.341989][ T3615] ? mm_update_next_owner+0x6d0/0x6d0 [ 43.347377][ T3615] ? do_notify_parent+0xe00/0xe00 [ 43.352523][ T3615] do_group_exit+0x23b/0x2f0 [ 43.357131][ T3615] __x64_sys_exit_group+0x3b/0x40 [ 43.362404][ T3615] do_syscall_64+0x3d/0xb0 [ 43.366860][ T3615] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.373156][ T3615] RIP: 0033:0x7f56eec1ac49 [ 43.377602][ T3615] Code: Unable to access opcode bytes at 0x7f56eec1ac1f. [ 43.384903][ T3615] RSP: 002b:00007ffe2d884048 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.393492][ T3615] RAX: ffffffffffffffda RBX: 00007f56eec913f0 RCX: 00007f56eec1ac49 [ 43.401660][ T3615] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 43.410279][ T3615] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f56eec8be40 [ 43.418290][ T3615] R10: 00007f56eec8be40 R11: 0000000000000246 R12: 00007f56eec913f0 [ 43.426386][ T3615] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 43.434665][ T3615] [ 43.437735][ T3615] Kernel panic - not syncing: panic_on_warn set ... [ 43.444328][ T3615] CPU: 0 PID: 3615 Comm: syz-executor180 Not tainted 6.0.0-syzkaller-03015-g2bca25eaeba6 #0 [ 43.454419][ T3615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 43.464497][ T3615] Call Trace: [ 43.467776][ T3615] [ 43.470709][ T3615] dump_stack_lvl+0x1b1/0x28e [ 43.475418][ T3615] ? fortify_panic+0x13/0x13 [ 43.480014][ T3615] ? panic+0x715/0x715 [ 43.484090][ T3615] ? vscnprintf+0x59/0x80 [ 43.488421][ T3615] ? udf_free_inode+0x200/0x2d0 [ 43.493267][ T3615] panic+0x2d6/0x715 [ 43.497166][ T3615] ? __warn+0x131/0x220 [ 43.501322][ T3615] ? fb_is_primary_device+0xcc/0xcc [ 43.506558][ T3615] ? udf_free_inode+0x22b/0x2d0 [ 43.511498][ T3615] __warn+0x1fa/0x220 [ 43.515483][ T3615] ? udf_free_inode+0x22b/0x2d0 [ 43.520331][ T3615] report_bug+0x1b3/0x2d0 [ 43.524667][ T3615] handle_bug+0x3d/0x70 [ 43.528822][ T3615] exc_invalid_op+0x16/0x40 [ 43.533327][ T3615] asm_exc_invalid_op+0x16/0x20 [ 43.538176][ T3615] RIP: 0010:udf_free_inode+0x22b/0x2d0 [ 43.543653][ T3615] Code: ff ff 4c 89 f7 31 f6 4c 89 ea 31 c9 41 b8 01 00 00 00 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 ca 58 ff ff e8 a5 23 92 fe <0f> 0b eb 80 44 89 e9 80 e1 07 fe c1 38 c1 0f 8c 65 fe ff ff 4c 89 [ 43.563290][ T3615] RSP: 0018:ffffc90003c4faf8 EFLAGS: 00010293 [ 43.569374][ T3615] RAX: ffffffff82f4a92b RBX: 0000000000000001 RCX: ffff8880270b3b00 [ 43.577386][ T3615] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 43.585361][ T3615] RBP: ffff88807366c01f R08: ffffffff82f4a8a1 R09: fffffbfff1c188fe [ 43.593333][ T3615] R10: fffffbfff1c188fe R11: 1ffffffff1c188fd R12: 1ffff1100e2cc8cf [ 43.601304][ T3615] R13: ffff888073d80158 R14: ffff888071664000 R15: ffff888071664678 [ 43.609283][ T3615] ? udf_free_inode+0x1a1/0x2d0 [ 43.614136][ T3615] ? udf_free_inode+0x22b/0x2d0 [ 43.618989][ T3615] ? udf_free_inode+0x22b/0x2d0 [ 43.623836][ T3615] ? udf_new_inode+0xf30/0xf30 [ 43.628607][ T3615] evict+0x2a4/0x620 [ 43.632521][ T3615] udf_sb_free_partitions+0x134/0x570 [ 43.637907][ T3615] udf_put_super+0x10f/0x160 [ 43.642509][ T3615] ? udf_free_in_core_inode+0x20/0x20 [ 43.647903][ T3615] generic_shutdown_super+0x130/0x310 [ 43.653288][ T3615] kill_block_super+0x79/0xd0 [ 43.657976][ T3615] deactivate_locked_super+0xa7/0xf0 [ 43.663262][ T3615] cleanup_mnt+0x4ce/0x560 [ 43.667680][ T3615] ? _raw_spin_unlock_irq+0x1f/0x40 [ 43.672972][ T3615] task_work_run+0x146/0x1c0 [ 43.677566][ T3615] do_exit+0x55e/0x20a0 [ 43.681717][ T3615] ? _raw_spin_unlock_irq+0x1f/0x40 [ 43.686914][ T3615] ? lockdep_hardirqs_on+0x8d/0x130 [ 43.692133][ T3615] ? _raw_spin_unlock_irq+0x2a/0x40 [ 43.697330][ T3615] ? ptrace_notify+0x245/0x340 [ 43.702093][ T3615] ? mm_update_next_owner+0x6d0/0x6d0 [ 43.707459][ T3615] ? do_notify_parent+0xe00/0xe00 [ 43.712576][ T3615] do_group_exit+0x23b/0x2f0 [ 43.717165][ T3615] __x64_sys_exit_group+0x3b/0x40 [ 43.722181][ T3615] do_syscall_64+0x3d/0xb0 [ 43.726599][ T3615] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.732491][ T3615] RIP: 0033:0x7f56eec1ac49 [ 43.736919][ T3615] Code: Unable to access opcode bytes at 0x7f56eec1ac1f. [ 43.743925][ T3615] RSP: 002b:00007ffe2d884048 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.752441][ T3615] RAX: ffffffffffffffda RBX: 00007f56eec913f0 RCX: 00007f56eec1ac49 [ 43.760412][ T3615] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 43.768377][ T3615] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f56eec8be40 [ 43.776358][ T3615] R10: 00007f56eec8be40 R11: 0000000000000246 R12: 00007f56eec913f0 [ 43.784323][ T3615] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 43.792302][ T3615] [ 43.795646][ T3615] Kernel Offset: disabled [ 43.800101][ T3615] Rebooting in 86400 seconds..