[....] Starting enhanced syslogd: rsyslogd[ 10.891664] audit: type=1400 audit(1514855531.892:5): avc: denied { syslog } for pid=2989 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.212956] audit: type=1400 audit(1514855539.213:6): avc: denied { map } for pid=3129 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.15.217' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 35.052877] audit: type=1400 audit(1514855556.053:7): avc: denied { map } for pid=3146 comm="syzkaller633149" path="/root/syzkaller633149443" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 35.088303] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 36.792158] WARNING: CPU: 0 PID: 3190 at arch/x86/kvm/x86.c:7375 kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 36.801591] Kernel panic - not syncing: panic_on_warn set ... [ 36.801591] [ 36.808943] CPU: 0 PID: 3190 Comm: syzkaller633149 Not tainted 4.15.0-rc4-next-20171221+ #78 [ 36.817498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.827431] Call Trace: [ 36.830013] dump_stack+0x194/0x257 [ 36.833632] ? arch_local_irq_restore+0x53/0x53 [ 36.838299] ? vsnprintf+0x1ed/0x1900 [ 36.842100] panic+0x1e4/0x41c [ 36.845284] ? refcount_error_report+0x214/0x214 [ 36.850044] ? show_regs_print_info+0x18/0x18 [ 36.854541] ? __warn+0x1c1/0x200 [ 36.857993] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 36.862997] __warn+0x1dc/0x200 [ 36.866270] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 36.871277] report_bug+0x211/0x2d0 [ 36.874906] fixup_bug.part.11+0x37/0x80 [ 36.878958] do_error_trap+0x2d7/0x3e0 [ 36.882834] ? trace_hardirqs_on+0xd/0x10 [ 36.886970] ? math_error+0x400/0x400 [ 36.890763] ? __lock_is_held+0xb6/0x140 [ 36.894829] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.899668] do_invalid_op+0x1b/0x20 [ 36.903381] invalid_op+0x22/0x40 [ 36.906820] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 36.912424] RSP: 0018:ffff8801c329f6b0 EFLAGS: 00010293 [ 36.917773] RAX: ffff8801c374c1c0 RBX: ffff8801be7ff000 RCX: ffffffff810df6b7 [ 36.925026] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801be0c9420 [ 36.932281] RBP: ffff8801c329fa40 R08: 1ffff10037c19d1b R09: 0000000000000001 [ 36.939536] R10: ffff8801c329f690 R11: 0000000000000000 R12: 0000000000000000 [ 36.946792] R13: ffff8801cba07d00 R14: ffff8801be0c9200 R15: ffff8801be0c9200 [ 36.954066] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 36.959087] ? mark_held_locks+0xaf/0x100 [ 36.963229] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.968323] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.973330] ? trace_hardirqs_on+0xd/0x10 [ 36.977472] ? free_object+0x150/0x230 [ 36.981346] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 36.986176] ? debug_stats_show+0xd0/0xd0 [ 36.990310] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.995405] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.000417] ? debug_object_free+0x2f1/0x5a0 [ 37.004807] ? lockdep_init_map+0x9/0x10 [ 37.008861] ? debug_object_destroy+0x2b0/0x2b0 [ 37.013536] ? __wait_rcu_gp+0x230/0x340 [ 37.017604] ? synchronize_sched.part.65+0xac/0x100 [ 37.022618] ? synchronize_sched_expedited+0xf0/0xf0 [ 37.027706] ? call_rcu_bh+0x20/0x20 [ 37.031412] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.037288] ? put_pid+0x183/0x1f0 [ 37.040816] ? task_active_pid_ns+0xd0/0xd0 [ 37.045131] ? __might_sleep+0x95/0x190 [ 37.049106] kvm_vcpu_ioctl+0x6f1/0xff0 [ 37.053065] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 37.057202] ? kvm_vcpu_fault+0x520/0x520 [ 37.061352] ? find_held_lock+0x35/0x1d0 [ 37.065414] ? __fget+0x333/0x570 [ 37.068858] ? lock_downgrade+0x980/0x980 [ 37.073005] ? lock_release+0xa40/0xa40 [ 37.076971] ? __lock_is_held+0xb6/0x140 [ 37.081048] ? __fget+0x35c/0x570 [ 37.084503] ? iterate_fd+0x3f0/0x3f0 [ 37.088302] ? finish_task_switch+0x1d3/0x740 [ 37.092792] ? kvm_vcpu_fault+0x520/0x520 [ 37.096925] do_vfs_ioctl+0x1b1/0x1520 [ 37.100815] ? ioctl_preallocate+0x2b0/0x2b0 [ 37.105215] ? selinux_capable+0x40/0x40 [ 37.109276] ? SyS_futex+0x269/0x390 [ 37.113003] ? security_file_ioctl+0x89/0xb0 [ 37.117407] SyS_ioctl+0x8f/0xc0 [ 37.120772] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 37.125514] RIP: 0033:0x445b29 [ 37.128686] RSP: 002b:00007f5491f01da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.136389] RAX: ffffffffffffffda RBX: 00007f5491f02700 RCX: 0000000000445b29 [ 37.143645] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 00000000000000c4 [ 37.150901] RBP: 00007ffe787dffb0 R08: 0000000000000000 R09: 0000000000000000 [ 37.158154] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 37.165409] R13: 00007ffe787dff0f R14: 00007f5491f029c0 R15: 0000000000000009 [ 37.172926] Dumping ftrace buffer: [ 37.176525] (ftrace buffer empty) [ 37.180203] Kernel Offset: disabled [ 37.183798] Rebooting in 86400 seconds..