[....] Starting enhanced syslogd: rsyslogd[ 12.318753] audit: type=1400 audit(1514854642.946:5): avc: denied { syslog } for pid=3341 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: [ 16.844861] audit: type=1400 audit(1514854647.472:6): avc: denied { map } for pid=3480 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 '10.128.0.16' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 23.070011] audit: type=1400 audit(1514854653.697:7): avc: denied { map } for pid=3495 comm="syzkaller428645" path="/root/syzkaller428645124" 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 executing program executing program executing program executing program executing program executing program executing program executing program [ 23.117476] 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 [ 23.559092] WARNING: CPU: 0 PID: 3521 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 23.568533] Kernel panic - not syncing: panic_on_warn set ... [ 23.568533] [ 23.575892] CPU: 0 PID: 3521 Comm: syzkaller428645 Not tainted 4.15.0-rc6+ #245 [ 23.583323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.592664] Call Trace: [ 23.595243] dump_stack+0x194/0x257 [ 23.598855] ? arch_local_irq_restore+0x53/0x53 [ 23.603500] ? vsnprintf+0x1ed/0x1900 [ 23.607278] panic+0x1e4/0x41c [ 23.610444] ? refcount_error_report+0x214/0x214 [ 23.615169] ? show_regs_print_info+0x18/0x18 [ 23.619640] ? __warn+0x1c1/0x200 [ 23.623067] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 23.628053] __warn+0x1dc/0x200 [ 23.631303] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 23.636293] report_bug+0x211/0x2d0 [ 23.639897] fixup_bug.part.11+0x37/0x80 [ 23.643930] do_error_trap+0x2d7/0x3e0 [ 23.647789] ? trace_hardirqs_on+0xd/0x10 [ 23.651907] ? math_error+0x400/0x400 [ 23.655680] ? __lock_is_held+0xb6/0x140 [ 23.659722] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.664540] do_invalid_op+0x1b/0x20 [ 23.668225] invalid_op+0x22/0x40 [ 23.671648] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 23.677236] RSP: 0018:ffff8801c050f6b0 EFLAGS: 00010293 [ 23.682568] RAX: ffff8801c073e5c0 RBX: ffff8801bf6a1000 RCX: ffffffff810df21f [ 23.689806] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bf020f60 [ 23.697046] RBP: ffff8801c050fa40 R08: 1ffff100380a1eb8 R09: 0000000000000001 [ 23.704291] R10: ffff8801c050fa58 R11: 0000000000000000 R12: 0000000000000000 [ 23.711530] R13: 1ffff100380a1f72 R14: ffff8801d846eb00 R15: ffff8801bf020d40 [ 23.718787] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 23.723788] ? mark_held_locks+0xaf/0x100 [ 23.727916] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 23.732992] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.737978] ? trace_hardirqs_on+0xd/0x10 [ 23.742098] ? free_object+0x150/0x230 [ 23.745963] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 23.750777] ? debug_stats_show+0xd0/0xd0 [ 23.754892] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 23.759966] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.764959] ? debug_object_free+0x2f1/0x5a0 [ 23.769334] ? lockdep_init_map+0x9/0x10 [ 23.773367] ? debug_object_destroy+0x2b0/0x2b0 [ 23.778027] ? __wait_rcu_gp+0x230/0x340 [ 23.782071] ? synchronize_sched.part.64+0xac/0x100 [ 23.787059] ? synchronize_sched_expedited+0xf0/0xf0 [ 23.792129] ? call_rcu_bh+0x20/0x20 [ 23.795815] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 23.801670] ? put_pid+0x183/0x1f0 [ 23.805180] ? task_active_pid_ns+0xd0/0xd0 [ 23.809476] ? __might_sleep+0x95/0x190 [ 23.813427] kvm_vcpu_ioctl+0x64c/0x1010 [ 23.817456] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 23.821672] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 23.827536] ? find_held_lock+0x35/0x1d0 [ 23.831576] ? __fget+0x333/0x570 [ 23.835001] ? lock_downgrade+0x980/0x980 [ 23.839126] ? lock_release+0xa40/0xa40 [ 23.843072] ? __lock_is_held+0xb6/0x140 [ 23.847118] ? __fget+0x35c/0x570 [ 23.850559] ? iterate_fd+0x3f0/0x3f0 [ 23.854337] ? putname+0xee/0x130 [ 23.857763] ? rcu_read_lock_sched_held+0x108/0x120 [ 23.862757] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 23.868610] do_vfs_ioctl+0x1b1/0x1520 [ 23.872472] ? ioctl_preallocate+0x2b0/0x2b0 [ 23.876864] ? selinux_capable+0x40/0x40 [ 23.880907] ? syscall_return_slowpath+0x2ad/0x550 [ 23.885812] ? security_file_ioctl+0x89/0xb0 [ 23.890193] SyS_ioctl+0x8f/0xc0 [ 23.893536] entry_SYSCALL_64_fastpath+0x23/0x9a [ 23.898260] RIP: 0033:0x445b59 [ 23.901419] RSP: 002b:00007f8323f67da8 EFLAGS: 00000297 ORIG_RAX: 0000000000000010 [ 23.909098] RAX: ffffffffffffffda RBX: 00000000006dac6c RCX: 0000000000445b59 [ 23.916337] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000026 [ 23.923575] RBP: 00000000006dac68 R08: 0000000000000000 R09: 0000000000000000 [ 23.930815] R10: 0000000000000000 R11: 0000000000000297 R12: 9590639acf9dbb4f [ 23.938061] R13: 6d766b2f7665642f R14: 0030656c69662f2e R15: 000000000000000a [ 23.945574] Dumping ftrace buffer: [ 23.949170] (ftrace buffer empty) [ 23.952847] Kernel Offset: disabled [ 23.956442] Rebooting in 86400 seconds..