[?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. [ 12.237847] audit: type=1400 audit(1513392508.524:6): avc: denied { map } for pid=3124 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-7,10.128.0.41' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 18.361810] audit: type=1400 audit(1513392514.648:7): avc: denied { map } for pid=3138 comm="syzkaller848502" path="/root/syzkaller848502940" 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 [ 18.371453] netlink: 37 bytes leftover after parsing attributes in process `syzkaller848502'. [ 18.396516] audit: type=1400 audit(1513392514.657:8): avc: denied { create } for pid=3138 comm="syzkaller848502" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 18.420798] audit: type=1400 audit(1513392514.658:9): avc: denied { write } for pid=3138 comm="syzkaller848502" path="socket:[11926]" dev="sockfs" ino=11926 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 18.456903] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 18.474619] kasan: CONFIG_KASAN_INLINE enabled [ 18.479204] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 18.486533] general protection fault: 0000 [#1] SMP KASAN [ 18.492033] Dumping ftrace buffer: [ 18.495535] (ftrace buffer empty) [ 18.499210] Modules linked in: [ 18.502368] CPU: 1 PID: 3138 Comm: syzkaller848502 Not tainted 4.15.0-rc3+ #223 [ 18.509774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.519097] RIP: 0010:native_write_cr4+0x4/0x10 [ 18.523726] RSP: 0018:ffff8801c90ff5a0 EFLAGS: 00010093 [ 18.529052] RAX: ffff8801ca302640 RBX: 00000000001606e0 RCX: ffffffff811a2a92 [ 18.536287] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 18.543520] RBP: ffff8801c90ff5a0 R08: 1ffff1003921fe0f R09: 0000000000000004 [ 18.550760] R10: ffff8801c90ff510 R11: 0000000000000004 R12: 0000000000000093 [ 18.557998] R13: ffff8801ca302640 R14: ffff8801db514850 R15: ffff8801db514850 [ 18.565245] FS: 0000000001d04880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 18.573434] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.579285] CR2: fffffffffffffff8 CR3: 0000000005e22003 CR4: 00000000001626e0 [ 18.586519] Call Trace: [ 18.589078] hardware_disable+0x34a/0x4b0 [ 18.593193] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 18.597655] kvm_arch_hardware_disable+0x35/0xd0 [ 18.602375] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 18.606835] hardware_disable_nolock+0x30/0x40 [ 18.611382] on_each_cpu+0xca/0x1b0 [ 18.614979] hardware_disable_all_nolock+0x3e/0x50 [ 18.619873] kvm_put_kvm+0x956/0xdf0 [ 18.623554] ? kvm_clear_guest+0xb0/0xb0 [ 18.627588] ? kvm_irqfd_release+0xd1/0x120 [ 18.631877] ? lock_downgrade+0x980/0x980 [ 18.635997] ? _raw_spin_unlock_irq+0x27/0x70 [ 18.640462] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 18.645461] ? kvm_irqfd_release+0xdd/0x120 [ 18.649747] ? kvm_irqfd_release+0xdd/0x120 [ 18.654035] ? kvm_put_kvm+0xdf0/0xdf0 [ 18.657889] kvm_vm_release+0x42/0x50 [ 18.661655] __fput+0x327/0x7e0 [ 18.664900] ? fput+0x140/0x140 [ 18.668143] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 18.673989] ? _raw_spin_unlock_irq+0x27/0x70 [ 18.678450] ____fput+0x15/0x20 [ 18.681696] task_work_run+0x199/0x270 [ 18.685548] ? task_work_cancel+0x210/0x210 [ 18.689833] ? _raw_spin_unlock+0x22/0x30 [ 18.693945] ? switch_task_namespaces+0x87/0xc0 [ 18.698580] do_exit+0x9bb/0x1ad0 [ 18.702000] ? mm_update_next_owner+0x930/0x930 [ 18.706639] ? avc_has_extended_perms+0x7fa/0x12c0 [ 18.711535] ? avc_ss_reset+0x110/0x110 [ 18.715476] ? vm_mmap_pgoff+0x1ed/0x280 [ 18.719502] ? lock_downgrade+0x980/0x980 [ 18.723622] ? user_return_notifier_unregister+0x23d/0x360 [ 18.729217] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 18.735067] ? kvm_on_user_return+0xe1/0x3c0 [ 18.739440] ? rcu_note_context_switch+0x710/0x710 [ 18.744338] ? sg_new_write.isra.19+0x830/0x830 [ 18.748971] ? do_vfs_ioctl+0x486/0x1520 [ 18.752994] ? _cond_resched+0x14/0x30 [ 18.756850] ? ioctl_preallocate+0x2b0/0x2b0 [ 18.761225] ? selinux_capable+0x40/0x40 [ 18.765250] ? __close_fd+0x222/0x360 [ 18.769029] do_group_exit+0x149/0x400 [ 18.772882] ? SyS_exit+0x30/0x30 [ 18.776299] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 18.781279] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 18.786008] SyS_exit_group+0x1d/0x20 [ 18.789777] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 18.794497] RIP: 0033:0x4465a8 [ 18.797651] RSP: 002b:00007ffe759537b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 18.805321] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00000000004465a8 [ 18.812555] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 18.819789] RBP: 00000000006d3018 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 18.827024] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000404dd0 [ 18.834257] R13: 0000000000404e60 R14: 0000000000000000 R15: 0000000000000000 [ 18.841499] 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 [ 18.860563] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801c90ff5a0 [ 18.866674] ---[ end trace 215ce2fa761f2488 ]--- [ 18.871392] Kernel panic - not syncing: Fatal exception [ 18.877151] Dumping ftrace buffer: [ 18.880653] (ftrace buffer empty) [ 18.884328] Kernel Offset: disabled [ 18.887918] Rebooting in 86400 seconds..