[....] Starting enhanced syslogd: rsyslogd[ 10.924876] audit: type=1400 audit(1515309557.501:5): avc: denied { syslog } for pid=3326 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: [ 16.956550] audit: type=1400 audit(1515309563.533:6): avc: denied { map } for pid=3466 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 '10.128.0.25' (ECDSA) to the list of known hosts. executing program executing program [ 111.139903] audit: type=1400 audit(1515309657.716:7): avc: denied { map } for pid=3485 comm="syzkaller773138" path="/root/syzkaller773138461" 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 [ 111.173429] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 184.330991] kasan: CONFIG_KASAN_INLINE enabled [ 184.335624] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 184.343053] general protection fault: 0000 [#1] SMP KASAN [ 184.348556] Dumping ftrace buffer: [ 184.352061] (ftrace buffer empty) [ 184.355736] Modules linked in: [ 184.358899] CPU: 0 PID: 3461 Comm: udevd Not tainted 4.15.0-rc6-mm1+ #51 [ 184.365701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 184.375026] RIP: 0010:native_write_cr4+0x4/0x10 [ 184.379659] RSP: 0018:ffff8801db407ed0 EFLAGS: 00010006 [ 184.384988] RAX: ffff8801cc3160c0 RBX: 00000000001606f0 RCX: ffffffff8115d7c2 [ 184.392223] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 184.399464] RBP: ffff8801db407ed0 R08: 0000000000400000 R09: 0000000000000000 [ 184.406701] R10: ffff8801bed577e0 R11: 0000000000000001 R12: 0000000000000006 [ 184.413935] R13: ffff8801cc3160c0 R14: ffff8801db41d130 R15: ffff8801db41d130 [ 184.421180] FS: 00007ffaf3d847a0(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 184.429372] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 184.435221] CR2: 00007ffaf3d8b000 CR3: 00000001c20b9001 CR4: 00000000001626f0 [ 184.442459] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 184.449694] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 184.456931] Call Trace: [ 184.459482] [ 184.461604] hardware_disable+0x34a/0x4b0 [ 184.465720] ? tick_program_event+0x83/0x100 [ 184.470098] ? kvm_io_bus_get_dev+0x1b0/0x1b0 [ 184.474560] kvm_arch_hardware_disable+0x35/0xd0 [ 184.479285] hardware_disable_nolock+0x30/0x40 [ 184.483833] flush_smp_call_function_queue+0x165/0x420 [ 184.489079] generic_smp_call_function_single_interrupt+0x13/0x30 [ 184.495280] smp_call_function_single_interrupt+0x83/0x450 [ 184.500870] call_function_single_interrupt+0xa9/0xb0 [ 184.506024] [ 184.508228] RIP: 0010:lock_is_held_type+0x18b/0x210 [ 184.513205] RSP: 0018:ffff8801bed577f0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 [ 184.520877] RAX: dffffc0000000000 RBX: 0000000000000282 RCX: ffffffff818a10a1 [ 184.528112] RDX: 1ffffffff0bd909d RSI: 00000000ffffffff RDI: 0000000000000282 [ 184.535353] RBP: ffff8801bed57810 R08: 0000000000400000 R09: 0000000000000000 [ 184.542590] R10: ffff8801bed577e0 R11: 0000000000000001 R12: ffff8801cc3160c0 [ 184.549825] R13: 0000000000000000 R14: 0000000000000000 R15: 00000000ffffffff [ 184.557070] ? should_failslab+0x101/0x120 [ 184.561277] ___might_sleep+0x2e9/0x400 [ 184.565218] __might_sleep+0x95/0x190 [ 184.568988] kmem_cache_alloc_node_trace+0x27c/0x750 [ 184.574070] __kmalloc_node_track_caller+0x33/0x70 [ 184.578973] __kmalloc_reserve.isra.39+0x41/0xe0 [ 184.583695] __alloc_skb+0xf0/0x5a0 [ 184.587290] ? skb_copy_and_csum_dev+0x370/0x370 [ 184.592015] ? ns_capable_common+0xcf/0x160 [ 184.596307] netlink_sendmsg+0x8ca/0xc40 [ 184.600338] ? netlink_unicast+0x700/0x700 [ 184.604540] ? security_socket_sendmsg+0x89/0xb0 [ 184.609262] ? netlink_unicast+0x700/0x700 [ 184.613464] sock_sendmsg+0xca/0x110 [ 184.617145] ___sys_sendmsg+0x717/0x8c0 [ 184.621090] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 184.625811] ? kasan_slab_free+0xe/0x10 [ 184.629750] ? remove_vma+0x162/0x1b0 [ 184.633515] ? do_munmap+0x82a/0xdf0 [ 184.637193] ? vm_munmap+0xd0/0x130 [ 184.640784] ? SyS_munmap+0x25/0x30 [ 184.644378] ? entry_SYSCALL_64_fastpath+0x23/0x9a [ 184.649278] ? debug_check_no_obj_freed+0x2d1/0xac3 [ 184.654259] ? lock_downgrade+0x860/0x860 [ 184.658372] ? debug_check_no_obj_freed+0x153/0xac3 [ 184.663358] ? mark_held_locks+0xaf/0x100 [ 184.667473] ? retint_kernel+0x10/0x10 [ 184.671327] ? remove_vma+0x162/0x1b0 [ 184.675092] ? check_noncircular+0x20/0x20 [ 184.679292] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 184.684016] ? check_noncircular+0x20/0x20 [ 184.688216] ? __lock_is_held+0xb6/0x140 [ 184.692246] ? __fget_light+0x158/0x1e0 [ 184.696188] ? __fdget+0x18/0x20 [ 184.699523] __sys_sendmsg+0xce/0x180 [ 184.703293] ? __sys_sendmsg+0xce/0x180 [ 184.707234] ? SyS_shutdown+0x1a0/0x1a0 [ 184.711176] ? do_munmap+0x4e2/0xdf0 [ 184.714863] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 184.719848] SyS_sendmsg+0x2d/0x50 [ 184.723356] entry_SYSCALL_64_fastpath+0x23/0x9a [ 184.728076] RIP: 0033:0x7ffaf3499320 [ 184.731753] RSP: 002b:00007ffe72d2c2c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 184.739433] RAX: ffffffffffffffda RBX: 00000000017d1af0 RCX: 00007ffaf3499320 [ 184.746667] RDX: 0000000000000000 RSI: 00007ffe72d2c310 RDI: 000000000000000b [ 184.753909] RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000 [ 184.761148] R10: 1999999999999999 R11: 0000000000000246 R12: 00000000ffffffff [ 184.768390] R13: 00000000017d1af0 R14: 0000000000000006 R15: 0000000000000ae8 [ 184.775633] 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 [ 184.794699] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db407ed0 [ 184.800814] ---[ end trace d13cc8a6e7c3f002 ]--- [ 184.805534] Kernel panic - not syncing: Fatal exception in interrupt [ 184.812474] Dumping ftrace buffer: [ 184.815982] (ftrace buffer empty) [ 184.819656] Kernel Offset: disabled [ 184.823245] Rebooting in 86400 seconds..