[....] Starting enhanced syslogd: rsyslogd[ 11.866430] audit: type=1400 audit(1516600396.922:5): avc: denied { syslog } for pid=3506 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: [ 17.285787] audit: type=1400 audit(1516600402.341:6): avc: denied { map } for pid=3645 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 '10.128.15.198' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 23.513243] audit: type=1400 audit(1516600408.568:7): avc: denied { map } for pid=3659 comm="syzkaller394423" path="/root/syzkaller394423127" 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 [ 23.560291] 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 [ 24.698151] WARNING: CPU: 1 PID: 3698 at arch/x86/kvm/x86.c:7370 kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 24.707674] Kernel panic - not syncing: panic_on_warn set ... [ 24.707674] [ 24.715029] CPU: 1 PID: 3698 Comm: syzkaller394423 Not tainted 4.15.0-rc8-next-20180119+ #102 [ 24.723683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.733029] Call Trace: [ 24.735609] dump_stack+0x194/0x257 [ 24.739235] ? arch_local_irq_restore+0x53/0x53 [ 24.743906] ? vsnprintf+0x1ed/0x1900 executing program executing program executing program [ 24.747704] panic+0x1e4/0x41c [ 24.750894] ? refcount_error_report+0x214/0x214 [ 24.755643] ? show_regs_print_info+0x18/0x18 [ 24.760140] ? __warn+0x1c1/0x200 [ 24.763599] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 24.768609] __warn+0x1dc/0x200 [ 24.771891] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 24.776902] report_bug+0x211/0x2d0 [ 24.780528] fixup_bug.part.11+0x37/0x80 [ 24.784582] do_error_trap+0x2d7/0x3e0 [ 24.788464] ? trace_hardirqs_on+0xd/0x10 [ 24.792603] ? math_error+0x400/0x400 executing program executing program [ 24.796400] ? __lock_is_held+0xb6/0x140 [ 24.800467] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.805311] do_invalid_op+0x1b/0x20 [ 24.809015] invalid_op+0x22/0x40 [ 24.812465] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 24.818072] RSP: 0000:ffff8801d8b6f6b0 EFLAGS: 00010293 [ 24.823423] RAX: ffff8801d88b4300 RBX: ffff8801bb2d8000 RCX: ffffffff810df547 [ 24.830683] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bf7d8660 [ 24.837944] RBP: ffff8801d8b6fa40 R08: 1ffff10037efbb63 R09: 0000000000000001 [ 24.845201] R10: ffff8801d8b6f690 R11: 0000000000000000 R12: 0000000000000000 [ 24.852456] R13: ffff8801c7705480 R14: ffff8801bf7d8440 R15: ffff8801bf7d8440 [ 24.859719] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 24.864721] ? mark_held_locks+0xaf/0x100 [ 24.868849] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 24.873932] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.878922] ? trace_hardirqs_on+0xd/0x10 [ 24.883049] ? free_object+0x150/0x230 [ 24.886912] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 24.891727] ? debug_stats_show+0xd0/0xd0 [ 24.895848] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 24.900927] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.905924] ? debug_object_free+0x2f1/0x5a0 [ 24.910317] ? lockdep_init_map+0x9/0x10 [ 24.914358] ? debug_object_destroy+0x2b0/0x2b0 [ 24.919023] ? __wait_rcu_gp+0x230/0x340 [ 24.923074] ? synchronize_sched.part.64+0xac/0x100 [ 24.928067] ? synchronize_sched_expedited+0xf0/0xf0 [ 24.933143] ? call_rcu_bh+0x20/0x20 [ 24.936834] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 24.942695] ? put_pid+0x183/0x1f0 [ 24.946208] ? task_active_pid_ns+0xd0/0xd0 [ 24.950509] ? __might_sleep+0x95/0x190 [ 24.954464] kvm_vcpu_ioctl+0x6f1/0xff0 [ 24.958418] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 24.962542] ? kvm_vcpu_fault+0x520/0x520 [ 24.966673] ? find_held_lock+0x35/0x1d0 [ 24.970721] ? __fget+0x333/0x570 [ 24.974150] ? lock_downgrade+0x980/0x980 [ 24.978271] ? find_held_lock+0x35/0x1d0 [ 24.982310] ? lock_release+0xa40/0xa40 [ 24.986263] ? __lock_is_held+0xb6/0x140 [ 24.990315] ? __fget+0x35c/0x570 [ 24.993754] ? iterate_fd+0x3f0/0x3f0 [ 24.997532] ? up_read+0x1a/0x40 [ 25.000876] ? __do_page_fault+0x3d6/0xc90 [ 25.005103] ? kvm_vcpu_fault+0x520/0x520 [ 25.009225] do_vfs_ioctl+0x1b1/0x1520 [ 25.013095] ? ioctl_preallocate+0x2b0/0x2b0 [ 25.017481] ? selinux_capable+0x40/0x40 [ 25.021522] ? SyS_futex+0x269/0x390 [ 25.025225] ? security_file_ioctl+0x89/0xb0 [ 25.029613] SyS_ioctl+0x8f/0xc0 [ 25.032959] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 25.037686] RIP: 0033:0x445ad9 [ 25.040849] RSP: 002b:00007fc1ac1dada8 EFLAGS: 00000293 ORIG_RAX: 0000000000000010 [ 25.048529] RAX: ffffffffffffffda RBX: 00000000006dac6c RCX: 0000000000445ad9 [ 25.055777] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000050 [ 25.063022] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 25.070269] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dac68 [ 25.077513] R13: 6d766b2f7665642f R14: 00007fc1ac1db9c0 R15: 0000000000000009 [ 25.085390] Dumping ftrace buffer: [ 25.089000] (ftrace buffer empty) [ 25.092680] Kernel Offset: disabled [ 25.096282] Rebooting in 86400 seconds..