[....] Starting enhanced syslogd: rsyslogd[ 5.549167] audit: type=1400 audit(1513502872.808:5): avc: denied { syslog } for pid=2978 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: [ 9.083729] audit: type=1400 audit(1513502876.342:6): avc: denied { map } for pid=3113 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-0,10.128.15.238' (ECDSA) to the list of known hosts. [ 151.448530] audit: type=1400 audit(1513503018.707:7): avc: denied { map } for pid=3133 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2017/12/17 09:30:19 parsed 1 programs 2017/12/17 09:30:19 executed programs: 0 [ 151.898068] audit: type=1400 audit(1513503019.156:8): avc: denied { map } for pid=3133 comm="syz-execprog" path="/root/syzkaller-shm155710932" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 151.923641] audit: type=1400 audit(1513503019.157:9): avc: denied { sys_admin } for pid=3140 comm="syz-executor0" 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 [ 151.950686] audit: type=1400 audit(1513503019.209:10): avc: denied { sys_chroot } for pid=3142 comm="syz-executor0" 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 [ 151.980853] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu 2017/12/17 09:30:24 executed programs: 859 2017/12/17 09:30:29 executed programs: 1644 2017/12/17 09:30:34 executed programs: 2443 2017/12/17 09:30:39 executed programs: 3227 2017/12/17 09:30:44 executed programs: 4011 2017/12/17 09:30:49 executed programs: 4815 2017/12/17 09:30:54 executed programs: 5609 2017/12/17 09:30:59 executed programs: 6391 2017/12/17 09:31:04 executed programs: 7188 2017/12/17 09:31:09 executed programs: 7990 2017/12/17 09:31:14 executed programs: 8812 [ 211.366953] general protection fault: 0000 [#1] SMP [ 211.371999] Dumping ftrace buffer: [ 211.375512] (ftrace buffer empty) [ 211.379199] Modules linked in: [ 211.382366] CPU: 1 PID: 31593 Comm: syz-executor0 Not tainted 4.15.0-rc3-next-20171214+ #67 [ 211.390815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 211.400137] RIP: 0010:native_write_cr4+0x4/0x10 [ 211.404767] RSP: 0018:ffffc90005b87b10 EFLAGS: 00010093 [ 211.410095] RAX: ffff88021317e5c0 RBX: 00000000001606e0 RCX: ffffffff8108d968 [ 211.417327] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 211.424560] RBP: ffffc90005b87b10 R08: 0000000000000001 R09: 0000000000000004 [ 211.431792] R10: ffffc90005b87b30 R11: 0000000000000004 R12: 0000000000000093 [ 211.439027] R13: ffff88021317e5c0 R14: ffff88020fc500d0 R15: ffff88020fc50098 [ 211.446261] FS: 00007f0b49306700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 211.454450] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 211.460293] CR2: 00007f82f9538000 CR3: 000000000301e002 CR4: 00000000001626e0 [ 211.467527] Call Trace: [ 211.470082] hardware_disable+0x1a0/0x210 [ 211.474195] ? kvm_io_bus_get_dev+0x150/0x150 [ 211.478659] kvm_arch_hardware_disable+0x14/0x50 [ 211.483377] hardware_disable_nolock+0x30/0x40 [ 211.487921] on_each_cpu+0x86/0x110 [ 211.491512] hardware_disable_all_nolock+0x3e/0x50 [ 211.496403] kvm_put_kvm+0x349/0x4a0 [ 211.500080] ? kvm_put_kvm+0x4a0/0x4a0 [ 211.503932] kvm_vm_release+0x24/0x30 [ 211.507698] __fput+0x120/0x270 [ 211.510942] ____fput+0x15/0x20 [ 211.514187] task_work_run+0xa3/0xe0 [ 211.517865] do_exit+0x3e6/0x1050 [ 211.521280] ? find_held_lock+0x35/0xa0 [ 211.525217] ? get_signal+0x3c7/0xad0 [ 211.528980] do_group_exit+0x60/0x100 [ 211.532744] get_signal+0x36c/0xad0 [ 211.536338] do_signal+0x23/0x670 [ 211.539759] ? debug_lockdep_rcu_enabled+0x1d/0x30 [ 211.544656] ? selinux_file_ioctl+0x152/0x210 [ 211.549114] ? do_vfs_ioctl+0x250/0x840 [ 211.553056] ? security_file_ioctl+0x51/0x80 [ 211.557427] exit_to_usermode_loop+0x13c/0x160 [ 211.561971] syscall_return_slowpath+0x1b4/0x1e0 [ 211.566691] entry_SYSCALL_64_fastpath+0x94/0x96 [ 211.571418] RIP: 0033:0x452a39 [ 211.574570] RSP: 002b:00007f0b49305c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 [ 211.582242] RAX: 0000000000000007 RBX: 0000000000758020 RCX: 0000000000452a39 [ 211.589475] RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000006 [ 211.596709] RBP: 00000000000001f1 R08: 0000000000000000 R09: 0000000000000000 [ 211.603943] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f0f38 [ 211.611178] R13: 00000000ffffffff R14: 00007f0b493066d4 R15: 0000000000000000 [ 211.618417] 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 [ 211.637456] RIP: native_write_cr4+0x4/0x10 RSP: ffffc90005b87b10 [ 211.643566] ---[ end trace 5c0cf739866cc2e3 ]--- [ 211.648281] Kernel panic - not syncing: Fatal exception [ 211.654030] Dumping ftrace buffer: [ 211.657537] (ftrace buffer empty) [ 211.661210] Kernel Offset: disabled [ 211.664796] Rebooting in 86400 seconds..