[?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. [ 17.378767] audit: type=1400 audit(1521009023.944:6): avc: denied { map } for pid=4081 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 '10.128.0.33' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.683137] audit: type=1400 audit(1521009030.248:7): avc: denied { map } for pid=4095 comm="syzkaller773137" path="/root/syzkaller773137281" 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 [ 29.151147] kasan: CONFIG_KASAN_INLINE enabled [ 29.155879] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.163408] general protection fault: 0000 [#1] SMP KASAN [ 29.168927] Dumping ftrace buffer: [ 29.172439] (ftrace buffer empty) [ 29.176118] Modules linked in: [ 29.179282] CPU: 1 PID: 4095 Comm: syzkaller773137 Not tainted 4.16.0-rc5+ #352 [ 29.186694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.196027] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.201103] RSP: 0018:ffff8801cbb4fcc8 EFLAGS: 00010206 [ 29.206443] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 29.213681] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.220920] RBP: ffff8801cbb4fce0 R08: 0000000000000000 R09: 1ffff10039769f15 [ 29.228167] R10: ffff8801cbb4f870 R11: 0000000000000001 R12: ffff8801cce9a7d2 [ 29.235405] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801cbb4fd58 [ 29.242646] FS: 0000000001536880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.250842] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.256694] CR2: 0000000001f57710 CR3: 00000001cb03a006 CR4: 00000000001606e0 [ 29.263941] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.271185] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.278424] Call Trace: [ 29.280990] smc_shutdown+0x3ed/0x540 [ 29.284762] SyS_shutdown+0x137/0x290 [ 29.288533] ? SyS_getsockopt+0x340/0x340 [ 29.292651] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.298155] ? do_syscall_64+0xb7/0x940 [ 29.302096] ? SyS_getsockopt+0x340/0x340 [ 29.306214] do_syscall_64+0x281/0x940 [ 29.310069] ? __do_page_fault+0xc90/0xc90 [ 29.314274] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.318998] ? syscall_return_slowpath+0x550/0x550 [ 29.323905] ? syscall_return_slowpath+0x2ac/0x550 [ 29.328805] ? prepare_exit_to_usermode+0x350/0x350 [ 29.333796] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.339130] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.343945] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.349102] RIP: 0033:0x43fcb9 [ 29.352259] RSP: 002b:00007fff369702e8 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 29.359933] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 29.367172] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 29.374408] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 29.381743] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 29.388981] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 29.396227] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ac 20 11 fd 48 8d 7b 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 32 4c 8b 63 28 48 b8 00 00 00 00 00 fc ff df 49 [ 29.415295] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801cbb4fcc8 [ 29.421900] ---[ end trace ba7cbf7142fe6d28 ]--- [ 29.426650] Kernel panic - not syncing: Fatal exception [ 29.432383] Dumping ftrace buffer: [ 29.435893] (ftrace buffer empty) [ 29.439576] Kernel Offset: disabled [ 29.443174] Rebooting in 86400 seconds..