[....] Starting enhanced syslogd: rsyslogd[ 10.307654] audit: type=1400 audit(1514024765.412:5): avc: denied { syslog } for pid=2985 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: [ 12.741056] audit: type=1400 audit(1514024767.845:6): avc: denied { map } for pid=3124 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 'ci-upstream-mmots-kasan-gce-4,10.128.15.236' (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 [ 29.058226] audit: type=1400 audit(1514024784.162:7): avc: denied { map } for pid=3141 comm="syzkaller828536" path="/root/syzkaller828536383" 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 [ 29.097569] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.813135] WARNING: CPU: 0 PID: 3174 at arch/x86/kvm/x86.c:7377 kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 32.822548] Kernel panic - not syncing: panic_on_warn set ... [ 32.822548] [ 32.829896] CPU: 0 PID: 3174 Comm: syzkaller828536 Not tainted 4.15.0-rc4-mm1+ #49 [ 32.837576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.846896] Call Trace: [ 32.849460] dump_stack+0x194/0x257 [ 32.853059] ? arch_local_irq_restore+0x53/0x53 [ 32.857703] ? vsnprintf+0x1ed/0x1900 [ 32.861479] panic+0x1e4/0x41c [ 32.864641] ? refcount_error_report+0x214/0x214 [ 32.869367] ? show_regs_print_info+0x18/0x18 [ 32.873839] ? __warn+0x1c1/0x200 [ 32.877267] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 32.882250] __warn+0x1dc/0x200 [ 32.885500] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 32.890487] report_bug+0x211/0x2d0 [ 32.894816] fixup_bug.part.11+0x37/0x80 [ 32.898851] do_error_trap+0x2d7/0x3e0 [ 32.902707] ? trace_hardirqs_on+0xd/0x10 [ 32.906828] ? math_error+0x400/0x400 [ 32.910599] ? __lock_is_held+0xb6/0x140 [ 32.914640] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.919457] do_invalid_op+0x1b/0x20 [ 32.923142] invalid_op+0x22/0x40 [ 32.926562] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 32.932151] RSP: 0000:ffff8801c7c776b0 EFLAGS: 00010293 [ 32.937482] RAX: ffff8801c7c96080 RBX: ffff8801d4d33000 RCX: ffffffff810df6bf [ 32.944720] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bcd32020 [ 32.951958] RBP: ffff8801c7c77a40 R08: 1ffff100379a6e9b R09: 0000000000000001 [ 32.959203] R10: ffff8801c7c77690 R11: 0000000000000000 R12: 0000000000000000 [ 32.966441] R13: ffff8801d6643c00 R14: ffff8801bcd31e00 R15: ffff8801bcd31e00 [ 32.973695] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 32.978692] ? mark_held_locks+0xaf/0x100 [ 32.982811] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 32.987886] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.992876] ? trace_hardirqs_on+0xd/0x10 [ 32.997002] ? free_object+0x150/0x230 [ 33.000862] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 33.005673] ? debug_stats_show+0xd0/0xd0 [ 33.009787] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 33.014860] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.019851] ? debug_object_free+0x2f1/0x5a0 [ 33.024223] ? lockdep_init_map+0x9/0x10 [ 33.028256] ? debug_object_destroy+0x2b0/0x2b0 [ 33.032910] ? __wait_rcu_gp+0x230/0x340 [ 33.036949] ? synchronize_sched.part.65+0xac/0x100 [ 33.041934] ? synchronize_sched_expedited+0xf0/0xf0 [ 33.047006] ? call_rcu_bh+0x20/0x20 [ 33.050696] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.056550] ? put_pid+0x183/0x1f0 [ 33.060058] ? task_active_pid_ns+0xd0/0xd0 [ 33.064349] ? __might_sleep+0x95/0x190 [ 33.068300] kvm_vcpu_ioctl+0x6f1/0xff0 [ 33.072242] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 33.076361] ? kvm_vcpu_fault+0x520/0x520 [ 33.080489] ? find_held_lock+0x35/0x1d0 [ 33.084531] ? __fget+0x333/0x570 [ 33.087956] ? lock_downgrade+0x980/0x980 [ 33.092072] ? find_held_lock+0x35/0x1d0 [ 33.096104] ? lock_release+0xa40/0xa40 [ 33.100050] ? __lock_is_held+0xb6/0x140 [ 33.104094] ? __fget+0x35c/0x570 [ 33.107527] ? iterate_fd+0x3f0/0x3f0 [ 33.111317] ? kvm_vcpu_fault+0x520/0x520 [ 33.115435] do_vfs_ioctl+0x1b1/0x1520 [ 33.119296] ? ioctl_preallocate+0x2b0/0x2b0 [ 33.123676] ? selinux_capable+0x40/0x40 [ 33.127710] ? SyS_futex+0x269/0x390 [ 33.131409] ? security_file_ioctl+0x89/0xb0 [ 33.135791] SyS_ioctl+0x8f/0xc0 [ 33.139131] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 33.143854] RIP: 0033:0x445cd9 [ 33.147020] RSP: 002b:00007f87defffda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.154696] RAX: ffffffffffffffda RBX: 00000000006dac84 RCX: 0000000000445cd9 [ 33.161936] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000152 [ 33.169173] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.176410] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac80 [ 33.183649] R13: 6d766b2f7665642f R14: 00007f87df0009c0 R15: 0000000000000009 [ 33.191523] Dumping ftrace buffer: [ 33.195106] (ftrace buffer empty) [ 33.198784] Kernel Offset: disabled [ 33.202379] Rebooting in 86400 seconds..