[?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. [ 12.261065] audit: type=1400 audit(1513387568.574:6): avc: denied { map } for pid=3121 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-kasan-gce-4,10.128.15.215' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 18.354827] audit: type=1400 audit(1513387574.668:7): avc: denied { map } for pid=3135 comm="syzkaller572938" path="/root/syzkaller572938923" 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 [ 18.387928] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 18.407538] kasan: CONFIG_KASAN_INLINE enabled [ 18.412130] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 18.419458] general protection fault: 0000 [#1] SMP KASAN [ 18.424958] Dumping ftrace buffer: [ 18.428461] (ftrace buffer empty) [ 18.432146] Modules linked in: [ 18.435306] CPU: 1 PID: 3135 Comm: syzkaller572938 Not tainted 4.15.0-rc3+ #223 [ 18.442715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.452040] RIP: 0010:native_write_cr4+0x4/0x10 [ 18.456673] RSP: 0018:ffff8801c934f5a0 EFLAGS: 00010093 [ 18.461999] RAX: ffff8801cb67a2c0 RBX: 00000000001606e0 RCX: ffffffff811a2a92 [ 18.469239] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 18.476472] RBP: ffff8801c934f5a0 R08: 1ffff10039269e0f R09: 0000000000000004 [ 18.483704] R10: ffff8801c934f510 R11: 0000000000000004 R12: 0000000000000093 [ 18.490938] R13: ffff8801cb67a2c0 R14: ffff8801db514850 R15: ffff8801db514850 [ 18.498177] FS: 0000000002209880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 18.506365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.512212] CR2: 0000000000000000 CR3: 0000000005e22004 CR4: 00000000001626e0 [ 18.519450] Call Trace: [ 18.522006] hardware_disable+0x34a/0x4b0 [ 18.526129] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 18.530594] kvm_arch_hardware_disable+0x35/0xd0 [ 18.535314] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 18.539772] hardware_disable_nolock+0x30/0x40 [ 18.544319] on_each_cpu+0xca/0x1b0 [ 18.547910] hardware_disable_all_nolock+0x3e/0x50 [ 18.552802] kvm_put_kvm+0x956/0xdf0 [ 18.556484] ? kvm_clear_guest+0xb0/0xb0 [ 18.560511] ? kvm_irqfd_release+0xd1/0x120 [ 18.564796] ? lock_downgrade+0x980/0x980 [ 18.568917] ? _raw_spin_unlock_irq+0x27/0x70 [ 18.573383] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 18.578369] ? kvm_irqfd_release+0xdd/0x120 [ 18.582653] ? kvm_irqfd_release+0xdd/0x120 [ 18.586938] ? kvm_put_kvm+0xdf0/0xdf0 [ 18.590789] kvm_vm_release+0x42/0x50 [ 18.594557] __fput+0x327/0x7e0 [ 18.597801] ? fput+0x140/0x140 [ 18.601046] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 18.606901] ? _raw_spin_unlock_irq+0x27/0x70 [ 18.611364] ____fput+0x15/0x20 [ 18.614614] task_work_run+0x199/0x270 [ 18.618475] ? task_work_cancel+0x210/0x210 [ 18.622759] ? _raw_spin_unlock+0x22/0x30 [ 18.626869] ? switch_task_namespaces+0x87/0xc0 [ 18.631505] do_exit+0x9bb/0x1ad0 [ 18.634922] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 18.640163] ? mm_update_next_owner+0x930/0x930 [ 18.644798] ? mntput_no_expire+0x15e/0xa90 [ 18.649081] ? _raw_spin_unlock+0x22/0x30 [ 18.653193] ? mnt_get_count+0x150/0x150 [ 18.657220] ? find_held_lock+0x35/0x1d0 [ 18.661247] ? task_work_run+0x16c/0x270 [ 18.665271] ? lock_downgrade+0x980/0x980 [ 18.669379] ? mntput+0x66/0x90 [ 18.672624] ? lock_release+0xa40/0xa40 [ 18.676566] ? do_raw_spin_trylock+0x190/0x190 [ 18.681112] ? _raw_spin_unlock_irq+0x27/0x70 [ 18.685571] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 18.690550] ? trace_hardirqs_on+0xd/0x10 [ 18.694664] ? _raw_spin_unlock_irq+0x27/0x70 [ 18.699128] ? task_work_run+0x1f4/0x270 [ 18.703158] ? task_work_cancel+0x210/0x210 [ 18.707445] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 18.712691] ? do_vfs_ioctl+0x486/0x1520 [ 18.716721] ? ioctl_preallocate+0x2b0/0x2b0 [ 18.721097] ? selinux_capable+0x40/0x40 [ 18.725126] ? __close_fd+0x222/0x360 [ 18.728898] do_group_exit+0x149/0x400 [ 18.732750] ? SyS_exit+0x30/0x30 [ 18.736171] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 18.741151] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 18.745871] SyS_exit_group+0x1d/0x20 [ 18.749636] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 18.754354] RIP: 0033:0x4425c8 [ 18.757515] RSP: 002b:00007fffbb4bec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 18.765186] RAX: ffffffffffffffda RBX: 00007fffbb4bd840 RCX: 00000000004425c8 [ 18.772425] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 18.779657] RBP: 0000000000000008 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 18.786893] R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 [ 18.794132] R13: 0000000000000004 R14: 0000000000000004 R15: 0000000020c21000 [ 18.801375] 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 [ 18.820437] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801c934f5a0 [ 18.826548] ---[ end trace 0bf1922acdf5e2b3 ]--- [ 18.831270] Kernel panic - not syncing: Fatal exception [ 18.837004] Dumping ftrace buffer: [ 18.840508] (ftrace buffer empty) [ 18.844182] Kernel Offset: disabled [ 18.847775] Rebooting in 86400 seconds..