[....] Starting enhanced syslogd: rsyslogd[ 12.115428] audit: type=1400 audit(1513537187.994:5): avc: denied { syslog } for pid=2993 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: [ 17.829432] audit: type=1400 audit(1513537193.708:6): avc: denied { map } for pid=3132 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-1,10.128.15.192' (ECDSA) to the list of known hosts. [ 35.067153] audit: type=1400 audit(1513537210.945:7): avc: denied { map } for pid=3149 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2017/12/17 19:00:11 parsed 1 programs 2017/12/17 19:00:11 executed programs: 0 [ 35.177515] audit: type=1400 audit(1513537211.056:8): avc: denied { map } for pid=3149 comm="syz-execprog" path="/root/syzkaller-shm817319767" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 35.214928] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 35.271636] kasan: CONFIG_KASAN_INLINE enabled [ 35.276255] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.283595] general protection fault: 0000 [#1] SMP KASAN [ 35.289102] Dumping ftrace buffer: [ 35.292608] (ftrace buffer empty) [ 35.296300] Modules linked in: [ 35.299463] CPU: 0 PID: 3126 Comm: udevd Not tainted 4.15.0-rc2-mm1+ #39 [ 35.306264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.315591] RIP: 0010:native_write_cr4+0x4/0x10 [ 35.320223] RSP: 0018:ffff8801db207ca8 EFLAGS: 00010006 [ 35.325550] RAX: ffff8801c8838000 RBX: 00000000001606f0 RCX: ffffffff811a2d22 [ 35.332792] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 35.340026] RBP: ffff8801db207ca8 R08: 0000000000000282 R09: 0000000000000000 [ 35.347263] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 [ 35.354503] R13: ffff8801c8838000 R14: ffff8801db21a130 R15: ffff8801db21a130 [ 35.361739] FS: 00007f00a3f1b7a0(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 35.369932] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.375779] CR2: 00007f00a3f22000 CR3: 00000001c9af0006 CR4: 00000000001626f0 [ 35.383023] Call Trace: [ 35.385575] [ 35.387696] hardware_disable+0x34a/0x4b0 [ 35.391808] ? irq_work_sync+0x1a0/0x1a0 [ 35.395838] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 35.400302] kvm_arch_hardware_disable+0x35/0xd0 [ 35.405025] hardware_disable_nolock+0x30/0x40 [ 35.409574] flush_smp_call_function_queue+0x1f4/0x570 [ 35.414818] ? cpumask_weight+0x40/0x40 [ 35.418763] ? rcu_idle_exit+0x410/0x410 [ 35.422795] ? __lock_is_held+0xbc/0x140 [ 35.426828] generic_smp_call_function_single_interrupt+0x13/0x30 [ 35.433027] smp_call_function_single_interrupt+0x103/0x640 [ 35.438700] ? smp_call_function_interrupt+0x640/0x640 [ 35.443950] ? _raw_spin_lock+0x32/0x40 [ 35.447889] ? _raw_spin_unlock+0x22/0x30 [ 35.452004] ? handle_edge_irq+0x2b4/0x7c0 [ 35.456204] ? task_prio+0x40/0x40 [ 35.459714] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.464532] call_function_single_interrupt+0xa9/0xb0 [ 35.469688] [ 35.471898] RIP: 0010:qlist_free_all+0x41/0x160 [ 35.476531] RSP: 0018:ffff8801c7b2fcb0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04 [ 35.484204] RAX: ffff8801c4d37c00 RBX: 0000000000000282 RCX: 0000000000000000 [ 35.491440] RDX: 0000000000000000 RSI: ffffea000714795f RDI: 0000000000000282 [ 35.498674] RBP: ffff8801c7b2fce8 R08: 0000000000000282 R09: 0000000000000000 [ 35.505910] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 35.513145] R13: ffff8801d9935e40 R14: ffff8801cc8ecd00 R15: ffffffff862cb980 [ 35.520398] quarantine_reduce+0x141/0x170 [ 35.524956] kasan_kmalloc+0xca/0xe0 [ 35.528636] kasan_slab_alloc+0x12/0x20 [ 35.532579] kmem_cache_alloc+0x11b/0x760 [ 35.536696] ? userfaultfd_unmap_prep+0x540/0x540 [ 35.541511] getname_flags+0xcb/0x580 [ 35.545278] ? up_write+0x6b/0x120 [ 35.548785] getname+0x19/0x20 [ 35.551945] do_sys_open+0x2e7/0x6d0 [ 35.555627] ? filp_open+0x70/0x70 [ 35.559136] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 35.563946] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.568930] SyS_open+0x2d/0x40 [ 35.572176] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 35.576895] RIP: 0033:0x7f00a3623120 [ 35.580570] RSP: 002b:00007ffd234b9a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 35.588242] RAX: ffffffffffffffda RBX: 0000000001467f00 RCX: 00007f00a3623120 [ 35.595478] RDX: 00000000000001b6 RSI: 0000000000080000 RDI: 00007ffd234b9b20 [ 35.602715] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000000001 [ 35.609949] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 35.617183] R13: 0000000001467f00 R14: 0000000000000006 R15: 0000000000000ae8 [ 35.624428] 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 [ 35.643490] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db207ca8 [ 35.649607] ---[ end trace 1039b8e6a2124778 ]--- [ 35.654326] Kernel panic - not syncing: Fatal exception in interrupt [ 35.660815] Dumping ftrace buffer: [ 35.664323] (ftrace buffer empty) [ 35.668002] Kernel Offset: disabled [ 35.671598] Rebooting in 86400 seconds..