./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor464027188 <...> Warning: Permanently added '10.128.0.18' (ED25519) to the list of known hosts. execve("./syz-executor464027188", ["./syz-executor464027188"], 0x7ffefcd1ff90 /* 10 vars */) = 0 brk(NULL) = 0x55555c237000 brk(0x55555c237d00) = 0x55555c237d00 arch_prctl(ARCH_SET_FS, 0x55555c237380) = 0 set_tid_address(0x55555c237650) = 5832 set_robust_list(0x55555c237660, 24) = 0 rseq(0x55555c237ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor464027188", 4096) = 27 getrandom("\x42\x42\xce\xce\x3d\x39\x62\xcb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555c237d00 brk(0x55555c258d00) = 0x55555c258d00 brk(0x55555c259000) = 0x55555c259000 mprotect(0x7f022f885000, 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=0x55555c237650) = 5833 ./strace-static-x86_64: Process 5833 attached [pid 5833] set_robust_list(0x55555c237660, 24) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5833] getppid() = 0 [pid 5833] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5833] unshare(CLONE_NEWNS) = 0 [pid 5833] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5833] unshare(CLONE_NEWIPC) = 0 [pid 5833] unshare(CLONE_NEWCGROUP) = 0 [pid 5833] unshare(CLONE_NEWUTS) = 0 [pid 5833] unshare(CLONE_SYSVSEM) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "16777216", 8) = 8 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "536870912", 9) = 9 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "8192", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5833] close(3) = 0 [pid 5833] getpid() = 1 [pid 5833] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 79.901962][ T5833] RSP: 0018:ffffc9000390fb80 EFLAGS: 00010246 [ 79.908129][ T5833] RAX: 000000000000002f RBX: ffffffff8ee52e40 RCX: 51eac5e4d6766500 [ 79.916110][ T5833] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 79.924084][ T5833] RBP: 1ffff1100f1da4f0 R08: ffffffff8174a0ec R09: 1ffff110170c519a [ 79.932148][ T5833] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff888078ed2668 [ 79.940124][ T5833] R13: dffffc0000000000 R14: ffffffff8c49f498 R15: ffff888078ed2780 [ 79.948104][ T5833] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 79.957048][ T5833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.963635][ T5833] CR2: 00007f022f889130 CR3: 000000000e734000 CR4: 00000000003526f0 [ 79.971613][ T5833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.979589][ T5833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.987563][ T5833] Call Trace: [ 79.990871][ T5833] [ 79.993808][ T5833] ? __die_body+0x5f/0xb0 [ 79.998183][ T5833] ? die+0x9e/0xc0 [ 80.001908][ T5833] ? do_trap+0x15a/0x3a0 [ 80.006163][ T5833] ? generic_shutdown_super+0x2ca/0x2d0 [ 80.011758][ T5833] ? do_error_trap+0x1dc/0x2c0 [ 80.016532][ T5833] ? generic_shutdown_super+0x2ca/0x2d0 [ 80.022087][ T5833] ? __pfx_do_error_trap+0x10/0x10 [ 80.027218][ T5833] ? report_bug+0x3e8/0x500 [ 80.031740][ T5833] ? handle_invalid_op+0x34/0x40 [ 80.036698][ T5833] ? generic_shutdown_super+0x2ca/0x2d0 [ 80.042253][ T5833] ? exc_invalid_op+0x38/0x50 [ 80.046947][ T5833] ? asm_exc_invalid_op+0x1a/0x20 [ 80.051981][ T5833] ? __wake_up_klogd+0xcc/0x110 [ 80.056846][ T5833] ? generic_shutdown_super+0x2ca/0x2d0 [ 80.062399][ T5833] kill_block_super+0x44/0x90 [ 80.067091][ T5833] deactivate_locked_super+0xc4/0x130 [ 80.072474][ T5833] cleanup_mnt+0x41f/0x4b0 [ 80.076896][ T5833] ? lockdep_hardirqs_on+0x99/0x150 [ 80.082101][ T5833] task_work_run+0x24f/0x310 [ 80.086710][ T5833] ? kasan_quarantine_put+0xdc/0x230 [ 80.092006][ T5833] ? __pfx_task_work_run+0x10/0x10 [ 80.097123][ T5833] ? do_exit+0xa2a/0x28e0 [ 80.101542][ T5833] ? kmem_cache_free+0x1a2/0x420 [ 80.106488][ T5833] ? do_exit+0xa2a/0x28e0 [ 80.110830][ T5833] do_exit+0xa2f/0x28e0 [ 80.114995][ T5833] ? __pfx_do_exit+0x10/0x10 [ 80.119592][ T5833] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 80.125589][ T5833] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 80.131940][ T5833] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.137156][ T5833] ? lockdep_hardirqs_on+0x99/0x150 [ 80.142389][ T5833] do_group_exit+0x207/0x2c0 [ 80.147101][ T5833] __x64_sys_exit_group+0x3f/0x40 [ 80.152145][ T5833] x64_sys_call+0x2634/0x2640 [ 80.156838][ T5833] do_syscall_64+0xf3/0x230 [ 80.161350][ T5833] ? clear_bhb_loop+0x35/0x90 [ 80.166039][ T5833] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 80.171943][ T5833] RIP: 0033:0x7f022f80ab09 [ 80.176370][ T5833] Code: Unable to access opcode bytes at 0x7f022f80aadf. [ 80.183407][ T5833] RSP: 002b:00007ffe14fbdd48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 80.191828][ T5833] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f022f80ab09 [ 80.199833][ T5833] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 80.207813][ T5833] RBP: 00007f022f88b2b0 R08: ffffffffffffffb8 R09: 0000000000000006 [ 80.215792][ T5833] R10: 00007ffe14fbdc70 R11: 0000000000000246 R12: 00007f022f88b2b0 [ 80.223766][ T5833] R13: 0000000000000000 R14: 00007f022f88c020 R15: 00007f022f7d9050 [ 80.231755][ T5833] [ 80.234774][ T5833] Modules linked in: [ 80.239056][ T5833] ---[ end trace 0000000000000000 ]--- [ 80.246642][ T5833] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 80.253017][ T5833] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 09 26 ed ff 48 8b 13 48 c7 c7 80 be 18 8c 4c 89 e6 e8 67 09 ad 09 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 80.272831][ T5833] RSP: 0018:ffffc9000390fb80 EFLAGS: 00010246 [ 80.279004][ T5833] RAX: 000000000000002f RBX: ffffffff8ee52e40 RCX: 51eac5e4d6766500 [ 80.287049][ T5833] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 80.295120][ T5833] RBP: 1ffff1100f1da4f0 R08: ffffffff8174a0ec R09: 1ffff110170c519a [ 80.303191][ T5833] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff888078ed2668 [ 80.311233][ T5833] R13: dffffc0000000000 R14: ffffffff8c49f498 R15: ffff888078ed2780 [ 80.319324][ T5833] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 80.328312][ T5833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.335498][ T5833] CR2: 00007f022f889130 CR3: 000000000e734000 CR4: 00000000003526f0 [ 80.343562][ T5833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.351584][ T5833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.360100][ T5833] Kernel panic - not syncing: Fatal exception [ 80.366457][ T5833] Kernel Offset: disabled [ 80.370784][ T5833] Rebooting in 86400 seconds..