[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 12.053043] audit: type=1400 audit(1514936453.388:6): avc: denied { map } for pid=3455 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 '10.128.0.8' (ECDSA) to the list of known hosts. syzkaller login: [ 18.160842] audit: type=1400 audit(1514936459.496:7): avc: denied { map } for pid=3469 comm="syzkaller557917" path="/root/syzkaller557917329" 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 [ 18.186900] audit: type=1400 audit(1514936459.496:8): avc: denied { sys_admin } for pid=3469 comm="syzkaller557917" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 executing program [ 18.214506] audit: type=1400 audit(1514936459.550:9): avc: denied { sys_chroot } for pid=3470 comm="syzkaller557917" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 18.249370] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 18.293893] kasan: CONFIG_KASAN_INLINE enabled [ 18.298502] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 18.305832] general protection fault: 0000 [#1] SMP KASAN [ 18.311334] Dumping ftrace buffer: [ 18.314841] (ftrace buffer empty) [ 18.318527] Modules linked in: [ 18.321692] CPU: 1 PID: 3472 Comm: syzkaller557917 Not tainted 4.15.0-rc6-next-20180102+ #86 [ 18.330230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.339555] RIP: 0010:native_write_cr4+0x4/0x10 [ 18.344189] RSP: 0018:ffff8801bfe67860 EFLAGS: 00010093 [ 18.349527] RAX: ffff8801bffac3c0 RBX: 00000000001606e0 RCX: ffffffff8115d7c2 [ 18.356762] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 18.363999] RBP: ffff8801bfe67860 R08: ffffffff8105f787 R09: 0000000000000004 [ 18.371265] R10: ffff8801bfe67878 R11: 0000000000000001 R12: 0000000000000093 [ 18.378501] R13: ffff8801bffac3c0 R14: ffff8801db51a130 R15: ffff8801db51a130 [ 18.385749] FS: 00007f99ed48b700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 18.393950] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.399798] CR2: 0000000000000000 CR3: 0000000005e22003 CR4: 00000000001626e0 [ 18.407036] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.414271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.421508] Call Trace: [ 18.424065] hardware_disable+0x34a/0x4b0 [ 18.428188] ? smp_call_function_many+0x76/0x6e0 [ 18.432914] ? kvm_io_bus_get_dev+0x1b0/0x1b0 [ 18.437378] kvm_arch_hardware_disable+0x35/0xd0 [ 18.442101] ? kvm_io_bus_get_dev+0x1b0/0x1b0 [ 18.446563] hardware_disable_nolock+0x30/0x40 [ 18.451110] on_each_cpu+0xca/0x1b0 [ 18.454706] hardware_disable_all_nolock+0x3e/0x50 [ 18.459600] kvm_put_kvm+0x69c/0xa70 [ 18.463282] ? kvm_put_kvm+0xa70/0xa70 [ 18.467135] kvm_vm_release+0x42/0x50 [ 18.470903] __fput+0x291/0x6e0 [ 18.474153] ____fput+0x15/0x20 [ 18.477398] task_work_run+0x122/0x1a0 [ 18.481255] do_exit+0x7f4/0x2da0 [ 18.484677] ? lock_downgrade+0x860/0x860 [ 18.488792] ? check_noncircular+0x20/0x20 [ 18.493003] ? mm_update_next_owner+0x690/0x690 [ 18.497639] ? find_held_lock+0x35/0x1e0 [ 18.501669] ? get_signal+0x644/0x1460 [ 18.505526] ? lock_downgrade+0x860/0x860 [ 18.509642] do_group_exit+0x108/0x320 [ 18.513499] get_signal+0x5e9/0x1460 [ 18.517185] do_signal+0x7f/0x1980 [ 18.520697] ? find_held_lock+0x35/0x1e0 [ 18.524734] ? find_held_lock+0x35/0x1e0 [ 18.528764] ? setup_sigcontext+0x7d0/0x7d0 [ 18.533048] ? kvm_vcpu_fault+0x3d0/0x3d0 [ 18.537174] ? do_vfs_ioctl+0x439/0xfe0 [ 18.541115] ? selinux_file_ioctl+0x354/0x540 [ 18.545576] ? lock_downgrade+0x860/0x860 [ 18.549698] ? ioctl_preallocate+0x1c0/0x1c0 [ 18.554076] ? __fget+0x22b/0x390 [ 18.557498] ? exit_to_usermode_loop+0x3f/0x210 [ 18.562136] exit_to_usermode_loop+0x1aa/0x210 [ 18.566689] syscall_return_slowpath+0x383/0x430 [ 18.571412] entry_SYSCALL_64_fastpath+0x98/0x9a [ 18.576135] RIP: 0033:0x449469 [ 18.579292] RSP: 002b:00007f99ed48ada8 EFLAGS: 00000283 ORIG_RAX: 0000000000000010 [ 18.586966] RAX: fffffffffffffffc RBX: 00000000006f003c RCX: 0000000000449469 [ 18.594210] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 18.601446] RBP: 00000000006f0038 R08: 0000000000000000 R09: 0000000000000000 [ 18.608682] R10: 0000000000000000 R11: 0000000000000283 R12: 6563726f666e652f [ 18.615919] R13: 78756e696c65732f R14: 0079656b5f676962 R15: 000000000000001c [ 18.623162] 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 [ 18.642242] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801bfe67860 [ 18.648354] ---[ end trace 320063a1c8ebbbc9 ]--- [ 18.653071] Kernel panic - not syncing: Fatal exception [ 18.658798] Dumping ftrace buffer: [ 18.662313] (ftrace buffer empty) [ 18.665995] Kernel Offset: disabled [ 18.669585] Rebooting in 86400 seconds..