./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3396030314 <...> Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. execve("./syz-executor3396030314", ["./syz-executor3396030314"], 0x7fff84632750 /* 10 vars */) = 0 brk(NULL) = 0x555556867000 brk(0x555556867c40) = 0x555556867c40 arch_prctl(ARCH_SET_FS, 0x555556867300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3396030314", 4096) = 28 brk(0x555556888c40) = 0x555556888c40 brk(0x555556889000) = 0x555556889000 mprotect(0x7f32663f4000, 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 3610 attached , child_tidptr=0x5555568675d0) = 3610 [pid 3610] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3610] setsid() = 1 [pid 3610] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3610] unshare(CLONE_NEWNS) = 0 [pid 3610] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3610] unshare(CLONE_NEWIPC) = 0 [pid 3610] unshare(CLONE_NEWCGROUP) = 0 [pid 3610] unshare(CLONE_NEWUTS) = 0 [pid 3610] unshare(CLONE_SYSVSEM) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "16777216", 8) = 8 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "536870912", 9) = 9 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "8192", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3610] close(3) = 0 [pid 3610] getpid() = 1 [pid 3610] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 33 ff ff ff 4c 89 ff e8 5b 03 f6 fe e9 8e fd ff ff e8 51 [ 33.606332][ T3610] RSP: 0018:ffffc90003e2fb40 EFLAGS: 00010293 [ 33.612419][ T3610] RAX: 0000000000000000 RBX: ffff888070c48158 RCX: 0000000000000000 [ 33.620422][ T3610] RDX: ffff88801bd1d880 RSI: ffffffff82d2ade6 RDI: 0000000000000005 [ 33.628447][ T3610] RBP: ffff888079cdd800 R08: 0000000000000005 R09: 0000000000000000 [ 33.636476][ T3610] R10: 0000000000000001 R11: 000000000008c07d R12: ffff88801d374000 [ 33.644443][ T3610] R13: ffff888079cdd8c0 R14: 0000000000000001 R15: ffff88801d374678 [ 33.652470][ T3610] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 33.661435][ T3610] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.668059][ T3610] CR2: 000055a93e254a50 CR3: 000000007e5ea000 CR4: 0000000000350ee0 [ 33.676046][ T3610] Call Trace: [ 33.679352][ T3610] [ 33.682297][ T3610] udf_evict_inode+0x348/0x580 [ 33.687109][ T3610] ? udf_setsize+0x1080/0x1080 [ 33.691904][ T3610] evict+0x2ed/0x6b0 [ 33.695792][ T3610] iput.part.0+0x55d/0x810 [ 33.700231][ T3610] iput+0x58/0x70 [ 33.703861][ T3610] udf_sb_free_partitions.isra.0+0x325/0x560 [ 33.709881][ T3610] ? __sync_dirty_buffer+0x1f7/0x370 [ 33.715180][ T3610] ? udf_close_lvid.isra.0+0x44c/0x550 [ 33.720651][ T3610] udf_put_super+0x133/0x220 [ 33.725244][ T3610] ? udf_close_lvid.isra.0+0x550/0x550 [ 33.730727][ T3610] generic_shutdown_super+0x154/0x410 [ 33.736156][ T3610] kill_block_super+0x97/0xf0 [ 33.740854][ T3610] deactivate_locked_super+0x94/0x160 [ 33.746281][ T3610] deactivate_super+0xad/0xd0 [ 33.750966][ T3610] cleanup_mnt+0x2ae/0x3d0 [ 33.755367][ T3610] task_work_run+0xdd/0x1a0 [ 33.759901][ T3610] do_exit+0xb2f/0x2a20 [ 33.764055][ T3610] ? lock_downgrade+0x6e0/0x6e0 [ 33.768947][ T3610] ? do_raw_spin_lock+0x120/0x2a0 [ 33.773979][ T3610] ? mm_update_next_owner+0x7a0/0x7a0 [ 33.779370][ T3610] ? rwlock_bug.part.0+0x90/0x90 [ 33.784312][ T3610] do_group_exit+0xd0/0x2a0 [ 33.788859][ T3610] __x64_sys_exit_group+0x3a/0x50 [ 33.793909][ T3610] do_syscall_64+0x35/0xb0 [ 33.798371][ T3610] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 33.804301][ T3610] RIP: 0033:0x7f3266383c49 [ 33.808744][ T3610] Code: Unable to access opcode bytes at 0x7f3266383c1f. [ 33.815769][ T3610] RSP: 002b:00007ffdca380128 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 33.824211][ T3610] RAX: ffffffffffffffda RBX: 00007f32663fa3f0 RCX: 00007f3266383c49 [ 33.832277][ T3610] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 33.840294][ T3610] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f32663f4e40 [ 33.848318][ T3610] R10: 00007f32663f4e40 R11: 0000000000000246 R12: 00007f32663fa3f0 [ 33.856345][ T3610] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 33.864362][ T3610] [ 33.867415][ T3610] Kernel panic - not syncing: panic_on_warn set ... [ 33.873997][ T3610] CPU: 1 PID: 3610 Comm: syz-executor339 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 [ 33.884047][ T3610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 33.894081][ T3610] Call Trace: [ 33.897343][ T3610] [ 33.900252][ T3610] dump_stack_lvl+0xcd/0x134 [ 33.904825][ T3610] panic+0x2c8/0x622 [ 33.908777][ T3610] ? panic_print_sys_info.part.0+0x10b/0x10b [ 33.914745][ T3610] ? __warn.cold+0x248/0x2c4 [ 33.919324][ T3610] ? udf_free_inode+0x2b6/0x320 [ 33.924163][ T3610] __warn.cold+0x259/0x2c4 [ 33.928570][ T3610] ? udf_free_inode+0x2b6/0x320 [ 33.933418][ T3610] report_bug+0x1bc/0x210 [ 33.937745][ T3610] handle_bug+0x3c/0x70 [ 33.941902][ T3610] exc_invalid_op+0x14/0x40 [ 33.946401][ T3610] asm_exc_invalid_op+0x16/0x20 [ 33.951245][ T3610] RIP: 0010:udf_free_inode+0x2b6/0x320 [ 33.956704][ T3610] Code: 24 01 e9 72 fe ff ff e8 78 9c a8 fe 0f 0b 48 89 df e8 5e 03 f6 fe e9 04 fe ff ff e8 64 03 f6 fe e9 50 fe ff ff e8 5a 9c a8 fe <0f> 0b e9 33 ff ff ff 4c 89 ff e8 5b 03 f6 fe e9 8e fd ff ff e8 51 [ 33.976306][ T3610] RSP: 0018:ffffc90003e2fb40 EFLAGS: 00010293 [ 33.982367][ T3610] RAX: 0000000000000000 RBX: ffff888070c48158 RCX: 0000000000000000 [ 33.990334][ T3610] RDX: ffff88801bd1d880 RSI: ffffffff82d2ade6 RDI: 0000000000000005 [ 33.998296][ T3610] RBP: ffff888079cdd800 R08: 0000000000000005 R09: 0000000000000000 [ 34.006254][ T3610] R10: 0000000000000001 R11: 000000000008c07d R12: ffff88801d374000 [ 34.014216][ T3610] R13: ffff888079cdd8c0 R14: 0000000000000001 R15: ffff88801d374678 [ 34.022181][ T3610] ? udf_free_inode+0x2b6/0x320 [ 34.027038][ T3610] udf_evict_inode+0x348/0x580 [ 34.031803][ T3610] ? udf_setsize+0x1080/0x1080 [ 34.036564][ T3610] evict+0x2ed/0x6b0 [ 34.040450][ T3610] iput.part.0+0x55d/0x810 [ 34.044856][ T3610] iput+0x58/0x70 [ 34.048479][ T3610] udf_sb_free_partitions.isra.0+0x325/0x560 [ 34.054451][ T3610] ? __sync_dirty_buffer+0x1f7/0x370 [ 34.059734][ T3610] ? udf_close_lvid.isra.0+0x44c/0x550 [ 34.065185][ T3610] udf_put_super+0x133/0x220 [ 34.069767][ T3610] ? udf_close_lvid.isra.0+0x550/0x550 [ 34.075222][ T3610] generic_shutdown_super+0x154/0x410 [ 34.080596][ T3610] kill_block_super+0x97/0xf0 [ 34.085269][ T3610] deactivate_locked_super+0x94/0x160 [ 34.090637][ T3610] deactivate_super+0xad/0xd0 [ 34.095309][ T3610] cleanup_mnt+0x2ae/0x3d0 [ 34.099726][ T3610] task_work_run+0xdd/0x1a0 [ 34.104227][ T3610] do_exit+0xb2f/0x2a20 [ 34.108374][ T3610] ? lock_downgrade+0x6e0/0x6e0 [ 34.113214][ T3610] ? do_raw_spin_lock+0x120/0x2a0 [ 34.118229][ T3610] ? mm_update_next_owner+0x7a0/0x7a0 [ 34.123588][ T3610] ? rwlock_bug.part.0+0x90/0x90 [ 34.128521][ T3610] do_group_exit+0xd0/0x2a0 [ 34.133014][ T3610] __x64_sys_exit_group+0x3a/0x50 [ 34.138029][ T3610] do_syscall_64+0x35/0xb0 [ 34.142444][ T3610] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 34.148331][ T3610] RIP: 0033:0x7f3266383c49 [ 34.152731][ T3610] Code: Unable to access opcode bytes at 0x7f3266383c1f. [ 34.159730][ T3610] RSP: 002b:00007ffdca380128 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 34.168131][ T3610] RAX: ffffffffffffffda RBX: 00007f32663fa3f0 RCX: 00007f3266383c49 [ 34.176093][ T3610] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 34.184061][ T3610] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f32663f4e40 [ 34.192024][ T3610] R10: 00007f32663f4e40 R11: 0000000000000246 R12: 00007f32663fa3f0 [ 34.199986][ T3610] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 34.207951][ T3610] [ 34.211642][ T3610] Kernel Offset: disabled [ 34.215953][ T3610] Rebooting in 86400 seconds..