./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2801126961 <...> Warning: Permanently added '10.128.0.117' (ED25519) to the list of known hosts. execve("./syz-executor2801126961", ["./syz-executor2801126961"], 0x7ffe2d36a740 /* 10 vars */) = 0 brk(NULL) = 0x55558590b000 brk(0x55558590bd00) = 0x55558590bd00 arch_prctl(ARCH_SET_FS, 0x55558590b380) = 0 set_tid_address(0x55558590b650) = 295 set_robust_list(0x55558590b660, 24) = 0 rseq(0x55558590bca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2801126961", 4096) = 28 getrandom("\x52\x70\x4e\xcf\xe9\xf7\xf3\x99", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558590bd00 brk(0x55558592cd00) = 0x55558592cd00 brk(0x55558592d000) = 0x55558592d000 mprotect(0x7f331fdf3000, 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 296 attached , child_tidptr=0x55558590b650) = 296 [pid 296] set_robust_list(0x55558590b660, 24) = 0 [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] getppid() = 0 [pid 296] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 296] unshare(CLONE_NEWNS) = 0 [pid 296] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 296] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 296] unshare(CLONE_NEWCGROUP) = 0 [pid 296] unshare(CLONE_NEWUTS) = 0 [pid 296] unshare(CLONE_SYSVSEM) = 0 [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] getpid() = 1 [pid 296] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 3c 4c 9f ff 0f 0b e8 35 4c 9f ff 0f 0b e8 2e 4c 9f ff 0f [ 21.106292][ T298] RSP: 0018:ffffc90000ef7c20 EFLAGS: 00010293 [ 21.112193][ T298] RAX: ffffffff81d639fd RBX: 0000000000000000 RCX: ffff8881106ad100 [ 21.120008][ T298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 21.127819][ T298] RBP: ffffc90000ef7c70 R08: ffffffff81d635d0 R09: ffffed102479f151 [ 21.135627][ T298] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 21.143456][ T298] R13: 1ffff1102479f150 R14: ffff888123cf8a80 R15: 0000000000003801 [ 21.151248][ T298] FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 21.160016][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.166438][ T298] CR2: 000055c0adb1ccc8 CR3: 0000000110285000 CR4: 00000000003506b0 [ 21.174259][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.182062][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.189873][ T298] Call Trace: [ 21.192996][ T298] [ 21.195779][ T298] ? __die_body+0x62/0xb0 [ 21.199940][ T298] ? die+0x88/0xb0 [ 21.203501][ T298] ? do_trap+0x103/0x330 [ 21.207579][ T298] ? submit_bh_wbc+0x4cd/0x4f0 [ 21.212179][ T298] ? handle_invalid_op+0x95/0xc0 [ 21.216951][ T298] ? submit_bh_wbc+0x4cd/0x4f0 [ 21.221555][ T298] ? exc_invalid_op+0x32/0x50 [ 21.226110][ T298] ? asm_exc_invalid_op+0x1b/0x20 [ 21.230932][ T298] ? submit_bh_wbc+0xa0/0x4f0 [ 21.235450][ T298] ? submit_bh_wbc+0x4cd/0x4f0 [ 21.240038][ T298] ? submit_bh_wbc+0x4cd/0x4f0 [ 21.244639][ T298] ? __kasan_check_read+0x11/0x20 [ 21.249498][ T298] submit_bh+0x1d/0x30 [ 21.253409][ T298] write_mmp_block_thawed+0x3a0/0x570 [ 21.258616][ T298] ? read_mmp_block+0x7d0/0x7d0 [ 21.263298][ T298] ? update_process_times+0x1b0/0x1b0 [ 21.268508][ T298] write_mmp_block+0x12b/0x2a0 [ 21.273108][ T298] kmmpd+0x263/0xa10 [ 21.276850][ T298] ? write_mmp_block_thawed+0x570/0x570 [ 21.282232][ T298] ? __kthread_parkme+0x12d/0x180 [ 21.287081][ T298] kthread+0x26d/0x300 [ 21.290987][ T298] ? write_mmp_block_thawed+0x570/0x570 [ 21.296369][ T298] ? kthread_blkcg+0xd0/0xd0 [ 21.300798][ T298] ret_from_fork+0x1f/0x30 [ 21.305048][ T298] [ 21.307917][ T298] Modules linked in: [ 21.311745][ T298] ---[ end trace 0000000000000000 ]--- [ 21.316944][ T298] RIP: 0010:submit_bh_wbc+0x4cd/0x4f0 [ 21.322235][ T298] Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 34 c2 e6 ff e9 b0 fe ff ff e8 4a 4c 9f ff 0f 0b e8 43 4c 9f ff <0f> 0b e8 3c 4c 9f ff 0f 0b e8 35 4c 9f ff 0f 0b e8 2e 4c 9f ff 0f [ 21.341827][ T298] RSP: 0018:ffffc90000ef7c20 EFLAGS: 00010293 [ 21.347729][ T298] RAX: ffffffff81d639fd RBX: 0000000000000000 RCX: ffff8881106ad100 [ 21.355585][ T298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 21.363375][ T298] RBP: ffffc90000ef7c70 R08: ffffffff81d635d0 R09: ffffed102479f151 [ 21.371179][ T298] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 21.378982][ T298] R13: 1ffff1102479f150 R14: ffff888123cf8a80 R15: 0000000000003801 [ 21.386804][ T298] FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 21.395598][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.401979][ T298] CR2: 000055c70b9f6028 CR3: 000000011052f000 CR4: 00000000003506a0 [ 21.409804][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.417589][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.425805][ T298] Kernel panic - not syncing: Fatal exception [ 21.431911][ T298] Kernel Offset: disabled [ 21.436043][ T298] Rebooting in 86400 seconds..