[?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. [ 13.303959] audit: type=1400 audit(1513533160.404:6): 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-mmots-kasan-gce-0,10.128.15.223' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 19.609665] audit: type=1400 audit(1513533166.710:7): avc: denied { map } for pid=3146 comm="syzkaller110514" path="/root/syzkaller110514405" 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 [ 19.682993] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu executing program executing program executing program [ 20.124515] kasan: CONFIG_KASAN_INLINE enabled [ 20.129127] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 20.136466] general protection fault: 0000 [#1] SMP KASAN [ 20.141969] Dumping ftrace buffer: [ 20.145472] (ftrace buffer empty) [ 20.149154] Modules linked in: [ 20.152312] CPU: 0 PID: 3186 Comm: syzkaller110514 Not tainted 4.15.0-rc2-mm1+ #39 [ 20.159980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.169308] RIP: 0010:native_write_cr4+0x4/0x10 [ 20.173938] RSP: 0018:ffff8801c2e4f5a0 EFLAGS: 00010093 [ 20.179265] RAX: ffff8801c2e2c480 RBX: 00000000001606f0 RCX: ffffffff811a2d22 [ 20.186501] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 20.193737] RBP: ffff8801c2e4f5a0 R08: ffff8801c2e4f150 R09: ffff8801c2e2c480 [ 20.200973] R10: ffff8801c2e4f510 R11: ffffed00385c9e2c R12: 0000000000000093 [ 20.208209] R13: ffff8801c2e2c480 R14: ffff8801db21a130 R15: ffff8801db21a130 [ 20.215455] FS: 000000000199f880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 20.223645] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.229494] CR2: 00007f4df6330000 CR3: 0000000006225001 CR4: 00000000001626f0 [ 20.236734] Call Trace: [ 20.239302] hardware_disable+0x34a/0x4b0 [ 20.243430] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 20.247897] kvm_arch_hardware_disable+0x35/0xd0 [ 20.252617] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 20.257084] hardware_disable_nolock+0x30/0x40 [ 20.261633] on_each_cpu+0xca/0x1b0 [ 20.265234] hardware_disable_all_nolock+0x3e/0x50 [ 20.270128] kvm_put_kvm+0x956/0xde0 [ 20.273811] ? kvm_clear_guest+0xb0/0xb0 [ 20.277839] ? lock_downgrade+0x980/0x980 [ 20.281962] ? do_raw_spin_trylock+0x190/0x190 [ 20.286517] ? _raw_spin_unlock_irq+0x27/0x70 [ 20.290976] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 20.295957] ? kvm_irqfd_release+0xdd/0x120 [ 20.300244] ? kvm_irqfd_release+0xdd/0x120 [ 20.304535] ? kvm_put_kvm+0xde0/0xde0 [ 20.308386] kvm_vm_release+0x42/0x50 [ 20.312151] __fput+0x333/0x7f0 [ 20.315398] ? fput+0x140/0x140 [ 20.318651] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 20.324508] ? _raw_spin_unlock_irq+0x27/0x70 [ 20.328975] ____fput+0x15/0x20 [ 20.332228] task_work_run+0x199/0x270 [ 20.336084] ? task_work_cancel+0x210/0x210 [ 20.340369] ? _raw_spin_unlock+0x22/0x30 [ 20.344488] ? switch_task_namespaces+0x87/0xc0 [ 20.349127] do_exit+0x9bb/0x1ae0 [ 20.352551] ? hrtimer_try_to_cancel+0x51/0x5c0 [ 20.357193] ? mm_update_next_owner+0x930/0x930 [ 20.361827] ? __hrtimer_get_remaining+0x1c0/0x1c0 [ 20.366730] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 20.372581] ? _do_fork+0x2ae/0xf10 [ 20.376180] ? rcu_note_context_switch+0x710/0x710 [ 20.381072] ? fork_idle+0x2d0/0x2d0 [ 20.384761] ? __might_sleep+0x95/0x190 [ 20.388703] ? do_nanosleep+0x4fc/0x6e0 [ 20.392646] ? schedule_timeout_idle+0x90/0x90 [ 20.397211] ? memset+0x31/0x40 [ 20.400461] ? hrtimer_nanosleep+0x2cc/0x860 [ 20.404836] ? nanosleep_copyout+0x100/0x100 [ 20.409208] ? __might_sleep+0x95/0x190 [ 20.413157] ? kasan_check_write+0x14/0x20 [ 20.417365] ? _copy_from_user+0x99/0x110 [ 20.421482] ? __hrtimer_init+0x140/0x140 [ 20.425600] ? syscall_return_slowpath+0x550/0x550 [ 20.430498] do_group_exit+0x149/0x400 [ 20.434351] ? SyS_exit+0x30/0x30 [ 20.437772] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 20.442754] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 20.447490] SyS_exit_group+0x1d/0x20 [ 20.451258] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 20.455976] RIP: 0033:0x448fe9 [ 20.459132] RSP: 002b:00007ffe0acfa0c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 20.466803] RAX: ffffffffffffffda RBX: 00007f95f25c1700 RCX: 0000000000448fe9 [ 20.474038] RDX: 0000000000474181 RSI: 0000000000000000 RDI: 0000000000000000 [ 20.481280] RBP: 00007ffe0acfa070 R08: 00000000006dd1c0 R09: 0000000000000000 [ 20.488519] R10: 00000000006dd144 R11: 0000000000000202 R12: 0000000000000000 [ 20.495755] R13: 00007ffe0acfa06f R14: 00007f95f25c19c0 R15: 0000000000000000 [ 20.503018] 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 [ 20.522087] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801c2e4f5a0 [ 20.528199] ---[ end trace 90e1004bbae96654 ]--- [ 20.532920] Kernel panic - not syncing: Fatal exception [ 20.538648] Dumping ftrace buffer: [ 20.542157] (ftrace buffer empty) [ 20.545830] Kernel Offset: disabled [ 20.549422] Rebooting in 86400 seconds..