./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3322730973 <...> Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. execve("./syz-executor3322730973", ["./syz-executor3322730973"], 0x7ffc278cadf0 /* 10 vars */) = 0 brk(NULL) = 0x555555c04000 brk(0x555555c04c40) = 0x555555c04c40 arch_prctl(ARCH_SET_FS, 0x555555c04300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3322730973", 4096) = 28 brk(0x555555c25c40) = 0x555555c25c40 brk(0x555555c26000) = 0x555555c26000 mprotect(0x7f618f485000, 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, child_tidptr=0x555555c045d0) = 5029 ./strace-static-x86_64: Process 5029 attached [pid 5029] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5029] setsid() = 1 [pid 5029] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5029] unshare(CLONE_NEWNS) = 0 [pid 5029] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5029] unshare(CLONE_NEWIPC) = 0 [pid 5029] unshare(CLONE_NEWCGROUP) = 0 [pid 5029] unshare(CLONE_NEWUTS) = 0 [pid 5029] unshare(CLONE_SYSVSEM) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "16777216", 8) = 8 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "536870912", 9) = 9 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "8192", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5029] close(3) = 0 [pid 5029] getpid() = 1 [pid 5029] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 88 03 00 00 [ 79.228516][ T5029] RSP: 0018:ffffc90003adfc38 EFLAGS: 00010a02 [ 79.234616][ T5029] RAX: dffffc0000000000 RBX: ffff8880e11916b0 RCX: 0000000000000000 [ 79.242608][ T5029] RDX: 1ffff1101c2322d9 RSI: 0000000000000002 RDI: ffff8880e11916c8 [ 79.250719][ T5029] RBP: ffff888029f74400 R08: 0000000000000000 R09: fffffbfff1d54d52 [ 79.258719][ T5029] R10: ffffffff8eaa6a97 R11: 0000000000000001 R12: ffff88807562ee80 [ 79.266714][ T5029] R13: ffff888075e84000 R14: ffff888029f744c0 R15: ffff8880795c2940 [ 79.274709][ T5029] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 79.283663][ T5029] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.290263][ T5029] CR2: ffffed101c2322d9 CR3: 000000000c775000 CR4: 00000000003506f0 [ 79.298287][ T5029] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.306286][ T5029] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.314284][ T5029] Call Trace: [ 79.317604][ T5029] [ 79.320550][ T5029] ? __die+0x1f/0x60 [ 79.324473][ T5029] ? page_fault_oops+0x34f/0xa50 [ 79.329436][ T5029] ? lock_downgrade+0x690/0x690 [ 79.334317][ T5029] ? dump_pagetable+0x500/0x500 [ 79.339189][ T5029] ? search_extable+0x83/0xb0 [ 79.343902][ T5029] ? is_prefetch.constprop.0+0xb7/0x540 [ 79.349484][ T5029] ? trim_init_extable+0x3d0/0x3d0 [ 79.354620][ T5029] ? pgtable_bad+0x90/0x90 [ 79.359059][ T5029] ? search_bpf_extables+0x1cc/0x320 [ 79.364381][ T5029] ? udf_close_lvid.isra.0+0x104/0x550 [ 79.369863][ T5029] ? fixup_exception+0x119/0xce0 [ 79.374844][ T5029] ? kernelmode_fixup_or_oops+0x23f/0x2b0 [ 79.380595][ T5029] ? __bad_area_nosemaphore+0x3a4/0x6c0 [ 79.386170][ T5029] ? spurious_kernel_fault+0x2f4/0x3e0 [ 79.391664][ T5029] ? do_kern_addr_fault+0x5b/0x70 [ 79.396742][ T5029] ? exc_page_fault+0x14f/0x170 [ 79.401631][ T5029] ? asm_exc_page_fault+0x26/0x30 [ 79.406690][ T5029] ? udf_close_lvid.isra.0+0x104/0x550 [ 79.412177][ T5029] ? udf_close_lvid.isra.0+0xef/0x550 [ 79.417571][ T5029] ? sync_blockdev+0x79/0x90 [ 79.422195][ T5029] udf_put_super+0x1bb/0x230 [ 79.426806][ T5029] ? udf_close_lvid.isra.0+0x550/0x550 [ 79.432287][ T5029] generic_shutdown_super+0x158/0x480 [ 79.437683][ T5029] kill_block_super+0x64/0xb0 [ 79.442378][ T5029] deactivate_locked_super+0x98/0x160 [ 79.447776][ T5029] deactivate_super+0xb1/0xd0 [ 79.452474][ T5029] cleanup_mnt+0x2ae/0x3d0 [ 79.456928][ T5029] task_work_run+0x16f/0x270 [ 79.461552][ T5029] ? task_work_cancel+0x30/0x30 [ 79.466436][ T5029] ? __put_net+0x61/0x70 [ 79.470713][ T5029] do_exit+0xa9a/0x29a0 [ 79.474918][ T5029] ? lock_downgrade+0x690/0x690 [ 79.479800][ T5029] ? do_raw_spin_lock+0x124/0x2b0 [ 79.484853][ T5029] ? mm_update_next_owner+0x7b0/0x7b0 [ 79.490258][ T5029] ? spin_bug+0x1c0/0x1c0 [ 79.494662][ T5029] ? _raw_spin_unlock_irq+0x23/0x50 [ 79.499917][ T5029] do_group_exit+0xd4/0x2a0 [ 79.504454][ T5029] __x64_sys_exit_group+0x3e/0x50 [ 79.509514][ T5029] do_syscall_64+0x39/0xb0 [ 79.513953][ T5029] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 79.519871][ T5029] RIP: 0033:0x7f618f3f6ea9 [ 79.524302][ T5029] Code: Unable to access opcode bytes at 0x7f618f3f6e7f. [ 79.531327][ T5029] RSP: 002b:00007fffce5ebf78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 79.539758][ T5029] RAX: ffffffffffffffda RBX: 00007f618f48b3f0 RCX: 00007f618f3f6ea9 [ 79.547768][ T5029] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 79.555752][ T5029] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f618f485e40 [ 79.563833][ T5029] R10: 0000000020000380 R11: 0000000000000246 R12: 00007f618f48b3f0 [ 79.571819][ T5029] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 79.579833][ T5029] [ 79.582865][ T5029] Modules linked in: [ 79.586806][ T5029] CR2: ffffed101c2322d9 [ 79.590971][ T5029] ---[ end trace 0000000000000000 ]--- [ 79.596431][ T5029] RIP: 0010:udf_close_lvid.isra.0+0x104/0x550 [ 79.602518][ T5029] Code: f2 70 9c fe 4c 8d b5 c0 00 00 00 31 f6 4c 89 f7 e8 51 e3 3a 07 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 88 03 00 00 [ 79.622164][ T5029] RSP: 0018:ffffc90003adfc38 EFLAGS: 00010a02 [ 79.628277][ T5029] RAX: dffffc0000000000 RBX: ffff8880e11916b0 RCX: 0000000000000000 [ 79.636268][ T5029] RDX: 1ffff1101c2322d9 RSI: 0000000000000002 RDI: ffff8880e11916c8 [ 79.644264][ T5029] RBP: ffff888029f74400 R08: 0000000000000000 R09: fffffbfff1d54d52 [ 79.652251][ T5029] R10: ffffffff8eaa6a97 R11: 0000000000000001 R12: ffff88807562ee80 [ 79.660242][ T5029] R13: ffff888075e84000 R14: ffff888029f744c0 R15: ffff8880795c2940 [ 79.668236][ T5029] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 79.677191][ T5029] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.683816][ T5029] CR2: ffffed101c2322d9 CR3: 000000000c775000 CR4: 00000000003506f0 [ 79.691807][ T5029] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.699793][ T5029] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.707782][ T5029] Kernel panic - not syncing: Fatal exception [ 79.714093][ T5029] Kernel Offset: disabled [ 79.718426][ T5029] Rebooting in 86400 seconds..