[....] Starting enhanced syslogd: rsyslogd[ 5.777380] audit: type=1400 audit(1513389993.357:5): avc: denied { syslog } for pid=2963 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: [ 11.696399] audit: type=1400 audit(1513389999.276:6): avc: denied { map } for pid=3099 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-2,10.128.0.63' (ECDSA) to the list of known hosts. executing program [ 17.586948] audit: type=1400 audit(1513390005.166:7): avc: denied { map } for pid=3113 comm="syzkaller320704" path="/root/syzkaller320704058" 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 [ 17.593567] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 17.599041] general protection fault: 0000 [#1] SMP [ 17.599722] Dumping ftrace buffer: [ 17.600198] (ftrace buffer empty) [ 17.600734] Modules linked in: [ 17.601195] CPU: 1 PID: 3113 Comm: syzkaller320704 Not tainted 4.15.0-rc3-next-20171214+ #67 [ 17.602366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.603643] RIP: 0010:native_write_cr4+0x4/0x10 [ 17.604277] RSP: 0018:ffffc90001853cc0 EFLAGS: 00010093 [ 17.604982] RAX: ffff880213900000 RBX: 00000000001606e0 RCX: ffffffff8108d968 [ 17.606052] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 17.607002] RBP: ffffc90001853cc0 R08: 0000000000000001 R09: 0000000000000004 [ 17.608963] R10: ffffc90001853ce0 R11: 0000000000000004 R12: 0000000000000093 [ 17.616195] R13: ffff880213900000 R14: ffff8802112500d0 R15: ffff880211250098 [ 17.623434] FS: 0000000001dbd880(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 17.631626] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.637470] CR2: 0000000000000000 CR3: 000000000301e005 CR4: 00000000001626e0 [ 17.644705] Call Trace: [ 17.647258] hardware_disable+0x1a0/0x210 [ 17.651371] ? kvm_io_bus_get_dev+0x150/0x150 [ 17.655831] kvm_arch_hardware_disable+0x14/0x50 [ 17.660549] hardware_disable_nolock+0x30/0x40 [ 17.665094] on_each_cpu+0x86/0x110 [ 17.668681] hardware_disable_all_nolock+0x3e/0x50 [ 17.673571] kvm_put_kvm+0x349/0x4a0 [ 17.677246] ? kvm_put_kvm+0x4a0/0x4a0 [ 17.681095] kvm_vm_release+0x24/0x30 [ 17.684857] __fput+0x120/0x270 [ 17.688100] ____fput+0x15/0x20 [ 17.691341] task_work_run+0xa3/0xe0 [ 17.695018] do_exit+0x3e6/0x1050 [ 17.698436] ? security_file_ioctl+0x51/0x80 [ 17.702810] do_group_exit+0x60/0x100 [ 17.706572] SyS_exit_group+0x18/0x20 [ 17.710339] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 17.715053] RIP: 0033:0x441c88 [ 17.718207] RSP: 002b:00007ffe331bc108 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.725877] RAX: ffffffffffffffda RBX: 00007ffe331bacc0 RCX: 0000000000441c88 [ 17.733116] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 17.740354] RBP: 0000000000000006 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 17.747760] R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 [ 17.754992] R13: 0000000000000004 R14: 0000000000000004 R15: 0000000020980000 [ 17.762228] 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 [ 17.781261] RIP: native_write_cr4+0x4/0x10 RSP: ffffc90001853cc0 [ 17.787370] ---[ end trace 2cfdd7b8d547ac88 ]--- [ 17.792086] Kernel panic - not syncing: Fatal exception [ 17.797527] Dumping ftrace buffer: [ 17.801025] (ftrace buffer empty) [ 17.804699] Kernel Offset: disabled [ 17.808295] Rebooting in 86400 seconds..