[....] Starting enhanced syslogd: rsyslogd[ 12.121467] audit: type=1400 audit(1516601846.564:5): avc: denied { syslog } for pid=3505 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 19.130261] audit: type=1400 audit(1516601853.573:6): avc: denied { map } for pid=3646 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 '10.128.0.11' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 25.338341] audit: type=1400 audit(1516601859.781:7): avc: denied { map } for pid=3660 comm="syzkaller172576" path="/root/syzkaller172576661" 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 [ 25.377737] 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 [ 25.701139] WARNING: CPU: 0 PID: 3694 at arch/x86/kvm/x86.c:7370 kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 25.710664] Kernel panic - not syncing: panic_on_warn set ... [ 25.710664] [ 25.718002] CPU: 0 PID: 3694 Comm: syzkaller172576 Not tainted 4.15.0-rc8-mm1+ #59 [ 25.725679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.735007] Call Trace: [ 25.737579] dump_stack+0x194/0x257 [ 25.741196] ? arch_local_irq_restore+0x53/0x53 [ 25.745852] ? vsnprintf+0x1ed/0x1900 [ 25.749627] panic+0x1e4/0x41c [ 25.752795] ? refcount_error_report+0x214/0x214 [ 25.757520] ? show_regs_print_info+0x18/0x18 [ 25.761990] ? get_cpu_entry_area+0xc/0x30 [ 25.766632] ? __warn+0x1c1/0x200 [ 25.770061] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 25.775049] __warn+0x1dc/0x200 [ 25.778302] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 25.783300] report_bug+0x211/0x2d0 [ 25.786914] fixup_bug.part.11+0x37/0x80 [ 25.790948] do_error_trap+0x2d7/0x3e0 [ 25.794807] ? trace_hardirqs_on+0xd/0x10 [ 25.798929] ? math_error+0x400/0x400 [ 25.802704] ? __lock_is_held+0xb6/0x140 [ 25.806755] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.811574] do_invalid_op+0x1b/0x20 [ 25.815260] invalid_op+0x22/0x40 [ 25.818695] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 25.824287] RSP: 0018:ffff8801d92a76b0 EFLAGS: 00010293 [ 25.829621] RAX: ffff8801d9b42280 RBX: ffff8801c3b41000 RCX: ffffffff810df547 [ 25.836871] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c3351160 [ 25.844114] RBP: ffff8801d92a7a40 R08: 1ffff1003866acc3 R09: 0000000000000001 [ 25.851357] R10: ffff8801d92a7690 R11: 0000000000000000 R12: 0000000000000000 [ 25.858597] R13: ffff8801d38b3080 R14: ffff8801c3350f40 R15: ffff8801c3350f40 [ 25.865853] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 25.870848] ? mark_held_locks+0xaf/0x100 [ 25.874972] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 25.880047] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.885036] ? trace_hardirqs_on+0xd/0x10 [ 25.889159] ? free_object+0x150/0x230 [ 25.893020] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 25.897839] ? debug_stats_show+0xd0/0xd0 [ 25.901958] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 25.907045] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.912041] ? debug_object_free+0x2f1/0x5a0 [ 25.916422] ? lockdep_init_map+0x9/0x10 [ 25.920467] ? debug_object_destroy+0x2b0/0x2b0 [ 25.925121] ? __wait_rcu_gp+0x230/0x340 [ 25.929164] ? synchronize_sched.part.64+0xac/0x100 [ 25.934157] ? synchronize_sched_expedited+0xf0/0xf0 [ 25.939235] ? call_rcu_bh+0x20/0x20 [ 25.942925] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 25.948783] ? put_pid+0x183/0x1f0 [ 25.952298] ? task_active_pid_ns+0xd0/0xd0 [ 25.956593] ? __might_sleep+0x95/0x190 [ 25.960549] kvm_vcpu_ioctl+0x6f1/0xff0 [ 25.964493] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 25.968624] ? kvm_vcpu_fault+0x520/0x520 [ 25.972757] ? find_held_lock+0x35/0x1d0 [ 25.976797] ? __fget+0x333/0x570 [ 25.980231] ? lock_downgrade+0x980/0x980 [ 25.984351] ? lock_release+0xa40/0xa40 [ 25.988303] ? __lock_is_held+0xb6/0x140 [ 25.992355] ? __fget+0x35c/0x570 [ 25.995786] ? iterate_fd+0x3f0/0x3f0 [ 25.999574] ? finish_task_switch+0x1d3/0x740 [ 26.004045] ? kvm_vcpu_fault+0x520/0x520 [ 26.008165] do_vfs_ioctl+0x1b1/0x1520 [ 26.012033] ? ioctl_preallocate+0x2b0/0x2b0 [ 26.016419] ? selinux_capable+0x40/0x40 [ 26.020458] ? SyS_futex+0x269/0x390 [ 26.024176] ? security_file_ioctl+0x89/0xb0 [ 26.028563] SyS_ioctl+0x8f/0xc0 [ 26.031913] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 26.036638] RIP: 0033:0x445ad9 [ 26.039800] RSP: 002b:00007f90f5734da8 EFLAGS: 00000293 ORIG_RAX: 0000000000000010 [ 26.047478] RAX: ffffffffffffffda RBX: 00000000006dac6c RCX: 0000000000445ad9 [ 26.054719] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000001d [ 26.061962] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 26.069202] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dac68 [ 26.076444] R13: 6d766b2f7665642f R14: 00007f90f57359c0 R15: 0000000000000009 [ 26.084156] Dumping ftrace buffer: [ 26.087769] (ftrace buffer empty) [ 26.091459] Kernel Offset: disabled [ 26.095061] Rebooting in 86400 seconds..