[....] Starting enhanced syslogd: rsyslogd[ 5.287679] audit: type=1400 audit(1513485742.361:5): avc: denied { syslog } for pid=2976 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 9.643383] audit: type=1400 audit(1513485746.717:6): avc: denied { map } for pid=3111 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 Warning: Permanently added 'ci-upstream-next-kasan-gce-9,10.128.0.58' (ECDSA) to the list of known hosts. executing program executing program [ 36.970462] audit: type=1400 audit(1513485774.044:7): avc: denied { map } for pid=3131 comm="syzkaller423527" path="/root/syzkaller423527785" 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 [ 36.986056] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 37.165146] general protection fault: 0000 [#1] SMP [ 37.170161] Dumping ftrace buffer: [ 37.173663] (ftrace buffer empty) [ 37.177336] Modules linked in: [ 37.180507] CPU: 0 PID: 3145 Comm: syzkaller423527 Not tainted 4.15.0-rc3-next-20171214+ #67 [ 37.189041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.198363] RIP: 0010:native_write_cr4+0x4/0x10 [ 37.202993] RSP: 0018:ffffc90001873cc0 EFLAGS: 00010093 [ 37.208315] RAX: ffff8802142281c0 RBX: 00000000001606f0 RCX: ffffffff8108d968 [ 37.215548] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 37.222780] RBP: ffffc90001873cc0 R08: 0000000000000001 R09: 0000000000000004 [ 37.230013] R10: ffffc90001873ce0 R11: 0000000000000004 R12: 0000000000000093 [ 37.237244] R13: ffff8802142281c0 R14: ffff8802135e00d0 R15: ffff8802135e0098 [ 37.244479] FS: 0000000001390880(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [ 37.252666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.258509] CR2: 00007ff5f15c42a0 CR3: 000000000301e002 CR4: 00000000001626f0 [ 37.265744] Call Trace: [ 37.268296] hardware_disable+0x1a0/0x210 [ 37.272405] ? kvm_io_bus_get_dev+0x150/0x150 [ 37.276865] kvm_arch_hardware_disable+0x14/0x50 [ 37.281582] hardware_disable_nolock+0x30/0x40 [ 37.286127] on_each_cpu+0x86/0x110 [ 37.289725] hardware_disable_all_nolock+0x3e/0x50 [ 37.294616] kvm_put_kvm+0x349/0x4a0 [ 37.298291] ? kvm_put_kvm+0x4a0/0x4a0 [ 37.302139] kvm_vm_release+0x24/0x30 [ 37.305903] __fput+0x120/0x270 [ 37.309144] ____fput+0x15/0x20 [ 37.312387] task_work_run+0xa3/0xe0 [ 37.316062] do_exit+0x3e6/0x1050 [ 37.319487] ? __hrtimer_init+0xd0/0xd0 [ 37.323422] do_group_exit+0x60/0x100 [ 37.327186] SyS_exit_group+0x18/0x20 [ 37.330949] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 37.335665] RIP: 0033:0x448fe9 [ 37.338819] RSP: 002b:00007ffd5006c5d8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 37.346494] RAX: ffffffffffffffda RBX: 00007ff5f0dc5700 RCX: 0000000000448fe9 [ 37.353724] RDX: 0000000000474181 RSI: 0000000000000000 RDI: 0000000000000000 [ 37.360958] RBP: 00007ffd5006c580 R08: 00000000006dd1c0 R09: 0000000000000000 [ 37.368192] R10: 00000000006dd144 R11: 0000000000000202 R12: 0000000000000000 [ 37.375426] R13: 00007ffd5006c57f R14: 00007ff5f0dc59c0 R15: 0000000000000000 [ 37.382661] 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 [ 37.401688] RIP: native_write_cr4+0x4/0x10 RSP: ffffc90001873cc0 [ 37.407796] ---[ end trace 930a4b7196e1752e ]--- [ 37.412512] Kernel panic - not syncing: Fatal exception [ 37.417863] Dumping ftrace buffer: [ 37.421365] (ftrace buffer empty) [ 37.425039] Kernel Offset: disabled [ 37.428628] Rebooting in 86400 seconds..