[....] Starting enhanced syslogd: rsyslogd[ 5.811632] audit: type=1400 audit(1513720027.021:5): avc: denied { syslog } for pid=2964 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: [ 9.277750] audit: type=1400 audit(1513720030.487:6): 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-2,10.128.0.25' (ECDSA) to the list of known hosts. [ 15.105749] audit: type=1400 audit(1513720036.315:7): avc: denied { map } for pid=3113 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 2017/12/19 21:47:16 parsed 1 programs 2017/12/19 21:47:16 executed programs: 0 [ 15.206608] audit: type=1400 audit(1513720036.416:8): avc: denied { map } for pid=3113 comm="syz-execprog" path="/root/syzkaller-shm576822670" 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 [ 15.235412] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 16.502944] general protection fault: 0000 [#1] SMP [ 16.507957] Dumping ftrace buffer: [ 16.511455] (ftrace buffer empty) [ 16.515126] Modules linked in: [ 16.518282] CPU: 0 PID: 1731 Comm: udevd Not tainted 4.15.0-rc3-next-20171214+ #67 [ 16.525949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 16.535274] RIP: 0010:native_write_cr4+0x4/0x10 [ 16.539903] RSP: 0018:ffff88021fc03f20 EFLAGS: 00010006 [ 16.545228] RAX: ffff8802137f0680 RBX: 00000000001606f0 RCX: ffffffff8108d968 [ 16.552460] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 16.559693] RBP: ffff88021fc03f20 R08: 0000000000000001 R09: 0000000000000000 [ 16.566923] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 [ 16.574155] R13: ffff8802137f0680 R14: ffffffff81026eb0 R15: 0000000000000000 [ 16.581388] FS: 00007f6840bf47a0(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [ 16.589573] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 16.595416] CR2: 00007f6840bfb000 CR3: 00000002137e0005 CR4: 00000000001626f0 [ 16.602647] Call Trace: [ 16.605192] [ 16.607307] hardware_disable+0x1a0/0x210 [ 16.611420] ? kvm_io_bus_get_dev+0x150/0x150 [ 16.615879] kvm_arch_hardware_disable+0x14/0x50 [ 16.620597] hardware_disable_nolock+0x30/0x40 [ 16.625138] flush_smp_call_function_queue+0x95/0x1e0 [ 16.630290] generic_smp_call_function_single_interrupt+0x13/0x30 [ 16.636487] smp_call_function_single_interrupt+0x42/0x240 [ 16.642072] call_function_single_interrupt+0xa9/0xb0 [ 16.647221] [ 16.649420] RIP: 0010:__follow_mount_rcu.isra.29+0x170/0x250 [ 16.655177] RSP: 0018:ffffc9000136fb78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff04 [ 16.662846] RAX: ffff8802137f0680 RBX: ffffc9000136fc48 RCX: ffffffff8141b20b [ 16.670076] RDX: 0000000000000000 RSI: ffff8802137f0ef0 RDI: 0000000000000293 [ 16.677308] RBP: ffffc9000136fbb8 R08: 0000000000000000 R09: 0000000000000000 [ 16.684539] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000136fdc8 [ 16.691772] R13: ffff8802159f7900 R14: 0000000000000293 R15: ffffc9000136fc40 [ 16.699008] ? __follow_mount_rcu.isra.29+0x16b/0x250 [ 16.704161] lookup_fast+0xe9/0x560 [ 16.707760] walk_component+0x42/0x4c0 [ 16.711614] ? __inode_permission+0x56/0x1f0 [ 16.715992] ? trace_hardirqs_on_caller+0x130/0x1b0 [ 16.720972] link_path_walk+0x3a3/0x690 [ 16.724912] path_openat+0xf6/0x1050 [ 16.728590] ? find_held_lock+0x35/0xa0 [ 16.732528] do_filp_open+0xaa/0x120 [ 16.736202] ? __lock_is_held+0x5a/0xa0 [ 16.740142] ? _raw_spin_unlock+0x22/0x30 [ 16.744258] do_sys_open+0x280/0x340 [ 16.747932] ? do_sys_open+0x280/0x340 [ 16.751781] SyS_open+0x2d/0x40 [ 16.755023] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 16.759737] RIP: 0033:0x7f68402fc120 [ 16.763410] RSP: 002b:00007fff4bca7b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 16.771077] RAX: ffffffffffffffda RBX: 0000000001cc3810 RCX: 00007f68402fc120 [ 16.778307] RDX: 00007fff4bca7b20 RSI: 0000000000000002 RDI: 00007fff4bca7b10 [ 16.785538] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000001c88010 [ 16.792768] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001c893d0 [ 16.800004] R13: 0000000001ca61a0 R14: 00007fff4bca8b68 R15: 0000000000000001 [ 16.807237] 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 [ 16.826266] RIP: native_write_cr4+0x4/0x10 RSP: ffff88021fc03f20 [ 16.832372] ---[ end trace 77157aa3c7503e62 ]--- [ 16.837093] Kernel panic - not syncing: Fatal exception in interrupt [ 16.843571] Dumping ftrace buffer: [ 16.847078] (ftrace buffer empty) [ 16.850752] Kernel Offset: disabled [ 16.854342] Rebooting in 86400 seconds..