[?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. [ 12.361162] audit: type=1400 audit(1513418534.146:6): 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-8,10.128.15.196' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 22.939620] audit: type=1400 audit(1513418544.725:7): avc: denied { map } for pid=3139 comm="syzkaller810603" path="/root/syzkaller810603695" 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 [ 22.972765] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 22.986835] kasan: CONFIG_KASAN_INLINE enabled [ 22.991439] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 22.998767] general protection fault: 0000 [#1] SMP KASAN [ 23.004270] Dumping ftrace buffer: [ 23.007774] (ftrace buffer empty) [ 23.011450] Modules linked in: [ 23.014609] CPU: 0 PID: 3139 Comm: syzkaller810603 Not tainted 4.15.0-rc3+ #224 [ 23.022022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.031352] RIP: 0010:native_write_cr4+0x4/0x10 [ 23.035985] RSP: 0018:ffff8801cfa675a0 EFLAGS: 00010093 [ 23.041312] RAX: ffff8801c9b90180 RBX: 00000000001606f0 RCX: ffffffff811a2a92 [ 23.048547] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 23.055783] RBP: ffff8801cfa675a0 R08: 1ffff10039f4ce0f R09: 0000000000000004 [ 23.063023] R10: ffff8801cfa67510 R11: 0000000000000004 R12: 0000000000000093 [ 23.070261] R13: ffff8801c9b90180 R14: ffff8801db414850 R15: ffff8801db414850 [ 23.077497] FS: 0000000001576880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 23.085688] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.091535] CR2: 0000000000000000 CR3: 0000000005e22006 CR4: 00000000001626f0 [ 23.098772] Call Trace: [ 23.101332] hardware_disable+0x34a/0x4b0 [ 23.105450] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 23.109913] kvm_arch_hardware_disable+0x35/0xd0 [ 23.114634] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 23.119093] hardware_disable_nolock+0x30/0x40 [ 23.123640] on_each_cpu+0xca/0x1b0 [ 23.127232] hardware_disable_all_nolock+0x3e/0x50 [ 23.132128] kvm_put_kvm+0x956/0xdf0 [ 23.135812] ? kvm_clear_guest+0xb0/0xb0 [ 23.139842] ? kvm_irqfd_release+0xd1/0x120 [ 23.144131] ? lock_downgrade+0x980/0x980 [ 23.148252] ? _raw_spin_unlock_irq+0x27/0x70 [ 23.152713] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.157698] ? kvm_irqfd_release+0xdd/0x120 [ 23.161986] ? kvm_irqfd_release+0xdd/0x120 [ 23.166273] ? kvm_put_kvm+0xdf0/0xdf0 [ 23.170125] kvm_vm_release+0x42/0x50 [ 23.173892] __fput+0x327/0x7e0 [ 23.177140] ? fput+0x140/0x140 [ 23.180387] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 23.186237] ? _raw_spin_unlock_irq+0x27/0x70 [ 23.190699] ____fput+0x15/0x20 [ 23.193946] task_work_run+0x199/0x270 [ 23.197800] ? task_work_cancel+0x210/0x210 [ 23.202085] ? _raw_spin_unlock+0x22/0x30 [ 23.206199] ? switch_task_namespaces+0x87/0xc0 [ 23.210837] do_exit+0x9bb/0x1ad0 [ 23.214256] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 23.219498] ? mm_update_next_owner+0x930/0x930 [ 23.224136] ? find_held_lock+0x35/0x1d0 [ 23.228174] ? handle_mm_fault+0x248/0x8d0 [ 23.232375] ? find_held_lock+0x35/0x1d0 [ 23.236406] ? __do_page_fault+0x5f7/0xc90 [ 23.240606] ? lock_downgrade+0x980/0x980 [ 23.244724] ? down_read_trylock+0xdb/0x170 [ 23.249014] ? __do_page_fault+0x32d/0xc90 [ 23.253229] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 23.257776] ? vmacache_find+0x5f/0x280 [ 23.261718] ? up_read+0x1a/0x40 [ 23.265049] ? __do_page_fault+0x3d6/0xc90 [ 23.269251] ? task_work_run+0x1f4/0x270 [ 23.273281] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 23.278525] ? do_vfs_ioctl+0x486/0x1520 [ 23.282553] ? ioctl_preallocate+0x2b0/0x2b0 [ 23.286930] ? selinux_capable+0x40/0x40 [ 23.290958] ? __close_fd+0x222/0x360 [ 23.294727] do_group_exit+0x149/0x400 [ 23.298582] ? SyS_exit+0x30/0x30 [ 23.302005] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.306994] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 23.311721] SyS_exit_group+0x1d/0x20 [ 23.315491] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 23.320211] RIP: 0033:0x441c68 [ 23.323365] RSP: 002b:00007ffee3ffd748 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.331037] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441c68 [ 23.338272] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 23.345507] RBP: 00000000202b2800 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 23.352742] R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000009120 [ 23.359977] R13: 000000002aaaaaab R14: ffffffffffffffff R15: 00000000202af000 [ 23.367218] 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 [ 23.386284] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801cfa675a0 [ 23.392398] ---[ end trace 5db6c852cbd41af0 ]--- [ 23.397116] Kernel panic - not syncing: Fatal exception [ 23.402866] Dumping ftrace buffer: [ 23.406376] (ftrace buffer empty) [ 23.410055] Kernel Offset: disabled [ 23.413645] Rebooting in 86400 seconds..