[....] Starting enhanced syslogd: rsyslogd[ 10.497049] audit: type=1400 audit(1513460220.963:5): avc: denied { syslog } for pid=2992 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: [ 12.716901] audit: type=1400 audit(1513460223.183:6): avc: denied { map } for pid=3130 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-kasan-gce-9,10.128.0.25' (ECDSA) to the list of known hosts. executing program [ 31.463442] audit: type=1400 audit(1513460241.930:7): avc: denied { map } for pid=3148 comm="syzkaller044920" path="/root/syzkaller044920040" 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 [ 31.494657] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 31.513906] kasan: CONFIG_KASAN_INLINE enabled [ 31.518509] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 31.525840] general protection fault: 0000 [#1] SMP KASAN [ 31.531353] Dumping ftrace buffer: [ 31.534857] (ftrace buffer empty) [ 31.538531] Modules linked in: [ 31.541691] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.15.0-rc3+ #224 [ 31.548323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.557665] RIP: 0010:native_write_cr4+0x4/0x10 [ 31.562299] RSP: 0018:ffff8801db407ca8 EFLAGS: 00010006 [ 31.568369] RAX: ffffffff85e2c340 RBX: 00000000001606f0 RCX: ffffffff811a2a92 [ 31.575607] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 31.582843] RBP: ffff8801db407ca8 R08: 0000000000000001 R09: ffff88021fff8008 [ 31.590077] R10: ffff88021fff8010 R11: ffff88021fff801d R12: 0000000000000006 [ 31.597314] R13: ffffffff85e2c340 R14: ffff8801db414850 R15: ffff8801db414850 [ 31.604556] FS: 0000000000000000(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 31.612747] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.618592] CR2: 00007fdd95fc2000 CR3: 0000000005e22006 CR4: 00000000001626f0 [ 31.625828] Call Trace: [ 31.628377] [ 31.630498] hardware_disable+0x34a/0x4b0 [ 31.634614] ? pvclock_read_flags+0x160/0x160 [ 31.639075] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 31.643535] kvm_arch_hardware_disable+0x35/0xd0 [ 31.648255] hardware_disable_nolock+0x30/0x40 [ 31.652804] flush_smp_call_function_queue+0x1f4/0x570 [ 31.658048] ? cpumask_weight+0x40/0x40 [ 31.661988] ? nr_iowait+0x210/0x210 [ 31.665667] ? tick_program_event+0x83/0x100 [ 31.670051] ? rcu_pm_notify+0xc0/0xc0 [ 31.673907] generic_smp_call_function_single_interrupt+0x13/0x30 [ 31.680107] smp_call_function_single_interrupt+0x103/0x640 [ 31.685783] ? smp_call_function_interrupt+0x640/0x640 [ 31.691022] ? _raw_spin_lock+0x32/0x40 [ 31.694963] ? handle_edge_irq+0x2b4/0x7c0 [ 31.699163] ? task_prio+0x40/0x40 [ 31.702671] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.707478] ? tick_nohz_idle_enter+0x120/0x220 [ 31.712115] call_function_single_interrupt+0x9d/0xb0 [ 31.717267] [ 31.719472] RIP: 0010:native_safe_halt+0x6/0x10 [ 31.724104] RSP: 0018:ffffffff85e07d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04 [ 31.731775] RAX: dffffc0000000000 RBX: 1ffffffff0bc0fa4 RCX: 0000000000000000 [ 31.739020] RDX: 1ffffffff0bd9058 RSI: 0000000000000001 RDI: ffffffff85ec82c0 [ 31.746256] RBP: ffffffff85e07d08 R08: ffffffff816390f0 R09: 0000000000000000 [ 31.753490] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 31.760724] R13: ffffffff85e07dc0 R14: ffffffff865dbd60 R15: 0000000000000000 [ 31.767966] ? tick_nohz_idle_enter+0x120/0x220 [ 31.772612] ? trace_hardirqs_on+0xd/0x10 [ 31.776723] default_idle+0xbf/0x460 [ 31.780412] ? __sched_text_end+0x4/0x4 [ 31.784361] arch_cpu_idle+0xa/0x10 [ 31.787960] default_idle_call+0x36/0x90 [ 31.791987] do_idle+0x24a/0x3b0 [ 31.795336] cpu_startup_entry+0x18/0x20 [ 31.799361] rest_init+0xed/0xf0 [ 31.802692] start_kernel+0x72e/0x754 [ 31.806458] ? mem_encrypt_init+0xb/0xb [ 31.810396] ? x86_family+0x32/0x40 [ 31.813989] ? load_ucode_bsp+0x1ea/0x1f6 [ 31.818101] x86_64_start_reservations+0x2a/0x2c [ 31.822833] x86_64_start_kernel+0x77/0x7a [ 31.827041] secondary_startup_64+0xa5/0xb0 [ 31.831334] Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d [ 31.850398] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db407ca8 [ 31.856512] ---[ end trace 89ea3ee3acbb4f40 ]--- [ 31.861233] Kernel panic - not syncing: Fatal exception in interrupt [ 31.867720] Dumping ftrace buffer: [ 31.871226] (ftrace buffer empty) [ 31.874903] Kernel Offset: disabled [ 31.878498] Rebooting in 86400 seconds..