./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3268989252 <...> DUID 00:04:e6:d8:3e:4c:c1:15:84:42:dc:00:60:8c:e3:5f:26:b4 forked to background, child pid 3183 [ 19.125766][ T3184] 8021q: adding VLAN 0 to HW filter on device bond0 [ 19.134047][ T3184] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.158' (ECDSA) to the list of known hosts. execve("./syz-executor3268989252", ["./syz-executor3268989252"], 0x7ffd94532ed0 /* 10 vars */) = 0 brk(NULL) = 0x555556b3e000 brk(0x555556b3ec40) = 0x555556b3ec40 arch_prctl(ARCH_SET_FS, 0x555556b3e300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3268989252", 4096) = 28 brk(0x555556b5fc40) = 0x555556b5fc40 brk(0x555556b60000) = 0x555556b60000 mprotect(0x7fe9ea105000, 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 3605 attached , child_tidptr=0x555556b3e5d0) = 3605 [pid 3605] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3605] setsid() = 1 [pid 3605] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3605] unshare(CLONE_NEWNS) = 0 [pid 3605] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3605] unshare(CLONE_NEWIPC) = 0 [pid 3605] unshare(CLONE_NEWCGROUP) = 0 [pid 3605] unshare(CLONE_NEWUTS) = 0 [pid 3605] unshare(CLONE_SYSVSEM) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "16777216", 8) = 8 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "536870912", 9) = 9 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "8192", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3605] close(3) = 0 [pid 3605] getpid() = 1 [pid 3605] 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 [ 35.540176][ T3605] RSP: 0018:ffffc90003e3faf8 EFLAGS: 00010293 [ 35.546234][ T3605] RAX: ffffffff82f4855b RBX: 0000000000000001 RCX: ffff888022619d80 [ 35.554246][ T3605] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 35.562248][ T3605] RBP: ffff888071a4f01f R08: ffffffff82f484d1 R09: fffffbfff1c19fde [ 35.570291][ T3605] R10: fffffbfff1c19fde R11: 1ffffffff1c19fdd R12: 1ffff1100433f4cf [ 35.578297][ T3605] R13: ffff888075760158 R14: ffff8880219fa000 R15: ffff8880219fa678 [ 35.586294][ T3605] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 35.595256][ T3605] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.601849][ T3605] CR2: 0000559a1b70da38 CR3: 00000000271fd000 CR4: 00000000003506e0 [ 35.609842][ T3605] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.617830][ T3605] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.625784][ T3605] Call Trace: [ 35.629068][ T3605] [ 35.631995][ T3605] ? udf_new_inode+0xf30/0xf30 [ 35.636742][ T3605] evict+0x2a4/0x620 [ 35.640651][ T3605] udf_sb_free_partitions+0x134/0x570 [ 35.646027][ T3605] udf_put_super+0x10f/0x160 [ 35.650671][ T3605] ? udf_free_in_core_inode+0x20/0x20 [ 35.656041][ T3605] generic_shutdown_super+0x130/0x310 [ 35.661432][ T3605] kill_block_super+0x79/0xd0 [ 35.666102][ T3605] deactivate_locked_super+0xa7/0xf0 [ 35.671420][ T3605] cleanup_mnt+0x4ce/0x560 [ 35.675856][ T3605] task_work_run+0x146/0x1c0 [ 35.680490][ T3605] do_exit+0x6b2/0x2280 [ 35.684662][ T3605] ? __lock_acquire+0x1f60/0x1f60 [ 35.689726][ T3605] ? ptrace_notify+0x245/0x340 [ 35.694485][ T3605] ? mm_update_next_owner+0x6d0/0x6d0 [ 35.699881][ T3605] ? print_irqtrace_events+0x220/0x220 [ 35.705346][ T3605] do_group_exit+0x1fd/0x2b0 [ 35.709963][ T3605] __x64_sys_exit_group+0x3b/0x40 [ 35.714987][ T3605] do_syscall_64+0x3d/0xb0 [ 35.719423][ T3605] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 35.725329][ T3605] RIP: 0033:0x7fe9ea094c79 [ 35.729758][ T3605] Code: Unable to access opcode bytes at 0x7fe9ea094c4f. [ 35.736765][ T3605] RSP: 002b:00007ffff9af5ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 35.745185][ T3605] RAX: ffffffffffffffda RBX: 00007fe9ea10b3f0 RCX: 00007fe9ea094c79 [ 35.753167][ T3605] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 35.761154][ T3605] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fe9ea105e40 [ 35.769136][ T3605] R10: 0000555556b3e2c0 R11: 0000000000000246 R12: 00007fe9ea10b3f0 [ 35.777085][ T3605] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 35.785080][ T3605] [ 35.788110][ T3605] Kernel panic - not syncing: panic_on_warn set ... [ 35.794671][ T3605] CPU: 1 PID: 3605 Comm: syz-executor326 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 [ 35.804711][ T3605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.814741][ T3605] Call Trace: [ 35.818004][ T3605] [ 35.820923][ T3605] dump_stack_lvl+0x1b1/0x28e [ 35.825594][ T3605] ? fortify_panic+0x13/0x13 [ 35.830171][ T3605] ? panic+0x710/0x710 [ 35.834246][ T3605] ? vscnprintf+0x59/0x80 [ 35.838569][ T3605] ? udf_free_inode+0x1d0/0x2d0 [ 35.843409][ T3605] panic+0x2d6/0x710 [ 35.847297][ T3605] ? __warn+0x131/0x220 [ 35.851444][ T3605] ? fb_is_primary_device+0xcc/0xcc [ 35.856636][ T3605] ? udf_free_inode+0x22b/0x2d0 [ 35.861474][ T3605] __warn+0x1fa/0x220 [ 35.865447][ T3605] ? udf_free_inode+0x22b/0x2d0 [ 35.870298][ T3605] report_bug+0x1b3/0x2d0 [ 35.874630][ T3605] handle_bug+0x3d/0x70 [ 35.878779][ T3605] exc_invalid_op+0x16/0x40 [ 35.883279][ T3605] asm_exc_invalid_op+0x16/0x20 [ 35.888134][ T3605] RIP: 0010:udf_free_inode+0x22b/0x2d0 [ 35.893593][ T3605] 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 da 58 ff ff e8 f5 fb 91 fe <0f> 0b eb 80 44 89 e9 80 e1 07 fe c1 38 c1 0f 8c 65 fe ff ff 4c 89 [ 35.913188][ T3605] RSP: 0018:ffffc90003e3faf8 EFLAGS: 00010293 [ 35.919239][ T3605] RAX: ffffffff82f4855b RBX: 0000000000000001 RCX: ffff888022619d80 [ 35.927200][ T3605] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 35.935157][ T3605] RBP: ffff888071a4f01f R08: ffffffff82f484d1 R09: fffffbfff1c19fde [ 35.943117][ T3605] R10: fffffbfff1c19fde R11: 1ffffffff1c19fdd R12: 1ffff1100433f4cf [ 35.951076][ T3605] R13: ffff888075760158 R14: ffff8880219fa000 R15: ffff8880219fa678 [ 35.959037][ T3605] ? udf_free_inode+0x1a1/0x2d0 [ 35.963877][ T3605] ? udf_free_inode+0x22b/0x2d0 [ 35.968715][ T3605] ? udf_free_inode+0x22b/0x2d0 [ 35.973551][ T3605] ? udf_new_inode+0xf30/0xf30 [ 35.978301][ T3605] evict+0x2a4/0x620 [ 35.982190][ T3605] udf_sb_free_partitions+0x134/0x570 [ 35.987552][ T3605] udf_put_super+0x10f/0x160 [ 35.992131][ T3605] ? udf_free_in_core_inode+0x20/0x20 [ 35.997522][ T3605] generic_shutdown_super+0x130/0x310 [ 36.002901][ T3605] kill_block_super+0x79/0xd0 [ 36.007581][ T3605] deactivate_locked_super+0xa7/0xf0 [ 36.012879][ T3605] cleanup_mnt+0x4ce/0x560 [ 36.017305][ T3605] task_work_run+0x146/0x1c0 [ 36.021907][ T3605] do_exit+0x6b2/0x2280 [ 36.026057][ T3605] ? __lock_acquire+0x1f60/0x1f60 [ 36.031071][ T3605] ? ptrace_notify+0x245/0x340 [ 36.035823][ T3605] ? mm_update_next_owner+0x6d0/0x6d0 [ 36.041179][ T3605] ? print_irqtrace_events+0x220/0x220 [ 36.046629][ T3605] do_group_exit+0x1fd/0x2b0 [ 36.051206][ T3605] __x64_sys_exit_group+0x3b/0x40 [ 36.056215][ T3605] do_syscall_64+0x3d/0xb0 [ 36.060622][ T3605] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 36.066523][ T3605] RIP: 0033:0x7fe9ea094c79 [ 36.070934][ T3605] Code: Unable to access opcode bytes at 0x7fe9ea094c4f. [ 36.077933][ T3605] RSP: 002b:00007ffff9af5ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 36.086339][ T3605] RAX: ffffffffffffffda RBX: 00007fe9ea10b3f0 RCX: 00007fe9ea094c79 [ 36.094298][ T3605] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 36.102269][ T3605] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fe9ea105e40 [ 36.110246][ T3605] R10: 0000555556b3e2c0 R11: 0000000000000246 R12: 00007fe9ea10b3f0 [ 36.118212][ T3605] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 36.126192][ T3605] [ 36.129373][ T3605] Kernel Offset: disabled [ 36.133699][ T3605] Rebooting in 86400 seconds..