[ 12.497057] audit: type=1400 audit(1513534701.874:5): avc: denied { syslog } for pid=2994 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [....] Starting enhanced syslogd: rsyslogd[?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: [ 17.621110] audit: type=1400 audit(1513534706.998:6): avc: denied { map } for pid=3137 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-1,10.128.0.59' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 23.920211] audit: type=1400 audit(1513534713.298:7): avc: denied { map } for pid=3150 comm="syzkaller240294" path="/root/syzkaller240294405" 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 [ 24.107380] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 24.244781] kasan: CONFIG_KASAN_INLINE enabled [ 24.249385] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.256722] general protection fault: 0000 [#1] SMP KASAN [ 24.262236] Dumping ftrace buffer: [ 24.265742] (ftrace buffer empty) [ 24.269418] Modules linked in: [ 24.272577] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.15.0-rc2-mm1+ #39 [ 24.279464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.288790] RIP: 0010:native_write_cr4+0x4/0x10 [ 24.293422] RSP: 0018:ffff8801db207ca8 EFLAGS: 00010006 [ 24.298748] RAX: ffffffff8622f380 RBX: 00000000001606f0 RCX: ffffffff811a2d22 [ 24.305982] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 24.313217] RBP: ffff8801db207ca8 R08: 0000000000000001 R09: ffff88021fff8008 [ 24.320453] R10: ffff88021fff8010 R11: ffff88021fff801d R12: 0000000000000006 [ 24.327688] R13: ffffffff8622f380 R14: ffff8801db21a130 R15: ffff8801db21a130 [ 24.334924] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 24.343114] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.348960] CR2: 00007efec28b8000 CR3: 0000000006225002 CR4: 00000000001626f0 [ 24.356200] Call Trace: [ 24.358746] [ 24.360868] hardware_disable+0x34a/0x4b0 [ 24.364983] ? pvclock_read_flags+0x160/0x160 [ 24.369446] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 24.374392] kvm_arch_hardware_disable+0x35/0xd0 [ 24.379125] hardware_disable_nolock+0x30/0x40 [ 24.383672] flush_smp_call_function_queue+0x1f4/0x570 [ 24.388917] ? cpumask_weight+0x40/0x40 [ 24.392857] ? nr_iowait+0x210/0x210 [ 24.396535] ? rcu_idle_exit+0x410/0x410 [ 24.400566] ? rcu_pm_notify+0xc0/0xc0 [ 24.404435] generic_smp_call_function_single_interrupt+0x13/0x30 [ 24.410634] smp_call_function_single_interrupt+0x103/0x640 [ 24.416309] ? smp_call_function_interrupt+0x640/0x640 [ 24.421553] ? _raw_spin_lock+0x32/0x40 [ 24.425496] ? _raw_spin_unlock+0x22/0x30 [ 24.429611] ? handle_edge_irq+0x2b4/0x7c0 [ 24.433813] ? task_prio+0x40/0x40 [ 24.437326] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.442139] call_function_single_interrupt+0xa9/0xb0 [ 24.447293] [ 24.449495] RIP: 0010:native_safe_halt+0x6/0x10 [ 24.454127] RSP: 0018:ffffffff86207d08 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 [ 24.461800] RAX: dffffc0000000000 RBX: 1ffffffff0c40fa4 RCX: 0000000000000000 [ 24.469035] RDX: 1ffffffff0c59734 RSI: 0000000000000001 RDI: ffffffff862cb9a0 [ 24.476271] RBP: ffffffff86207d08 R08: 0000000000000000 R09: 0000000000000000 [ 24.483512] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.490747] R13: ffffffff86207dc0 R14: ffffffff869eb920 R15: 0000000000000000 [ 24.498001] ? trace_hardirqs_on+0xd/0x10 [ 24.502120] default_idle+0xbf/0x430 [ 24.505799] ? __sched_text_end+0x4/0x4 [ 24.509742] ? rcu_eqs_special_set+0x1e0/0x1e0 [ 24.514291] ? tsc_verify_tsc_adjust+0xf6/0x3e0 [ 24.518923] ? set_cpu_sd_state_idle+0x1dc/0x2d0 [ 24.523645] ? mark_tsc_async_resets+0x30/0x30 [ 24.528199] arch_cpu_idle+0xa/0x10 [ 24.531790] default_idle_call+0x36/0x90 [ 24.535823] do_idle+0x24a/0x3b0 [ 24.539164] cpu_startup_entry+0x18/0x20 [ 24.543196] rest_init+0xed/0xf0 [ 24.546535] start_kernel+0x72e/0x754 [ 24.550309] ? mem_encrypt_init+0xb/0xb [ 24.554253] ? x86_family+0x32/0x40 [ 24.557847] ? load_ucode_bsp+0x1ea/0x1f6 [ 24.561961] x86_64_start_reservations+0x2a/0x2c [ 24.566679] x86_64_start_kernel+0x77/0x7a [ 24.570880] secondary_startup_64+0xa5/0xb0 [ 24.575172] 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 [ 24.594257] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db207ca8 [ 24.600372] ---[ end trace 5071d8b56415ded1 ]--- [ 24.605090] Kernel panic - not syncing: Fatal exception in interrupt [ 24.611576] Dumping ftrace buffer: [ 24.615080] (ftrace buffer empty) [ 24.618754] Kernel Offset: disabled [ 24.622342] Rebooting in 86400 seconds..