[....] Starting enhanced syslogd: rsyslogd[ 16.170551] audit: type=1400 audit(1519997869.892:5): avc: denied { syslog } for pid=4075 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 22.153913] audit: type=1400 audit(1519997875.875:6): avc: denied { map } for pid=4214 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 '10.128.0.53' (ECDSA) to the list of known hosts. executing program [ 28.428180] audit: type=1400 audit(1519997882.149:7): avc: denied { map } for pid=4227 comm="syzkaller670164" path="/root/syzkaller670164370" 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 [ 33.760455] kasan: CONFIG_KASAN_INLINE enabled [ 33.765175] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 33.772581] general protection fault: 0000 [#1] SMP KASAN [ 33.778102] Dumping ftrace buffer: [ 33.781621] (ftrace buffer empty) [ 33.785341] Modules linked in: [ 33.788525] CPU: 1 PID: 4227 Comm: syzkaller670164 Not tainted 4.16.0-rc3+ #336 [ 33.795944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.805276] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 33.810346] RSP: 0018:ffff8801b0e07cc8 EFLAGS: 00010206 [ 33.815686] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fb6f4 [ 33.822931] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 33.830178] RBP: ffff8801b0e07ce0 R08: 0000000000000000 R09: 1ffff100361c0f15 [ 33.837416] R10: ffff8801b0e07870 R11: 0000000000000001 R12: ffff8801b09967d2 [ 33.844656] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b0e07d58 [ 33.852515] FS: 000000000138b880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 33.860724] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.866577] CR2: 00007f5b9f591000 CR3: 00000001adea5005 CR4: 00000000001606e0 [ 33.873820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.881061] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.888309] Call Trace: [ 33.890877] smc_shutdown+0x3ed/0x540 [ 33.894658] SyS_shutdown+0x137/0x290 [ 33.898431] ? SyS_getsockopt+0x340/0x340 [ 33.902555] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 33.908070] ? do_syscall_64+0xb7/0x940 [ 33.912022] ? SyS_getsockopt+0x340/0x340 [ 33.916141] do_syscall_64+0x281/0x940 [ 33.919999] ? __do_page_fault+0xc90/0xc90 [ 33.924207] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.928934] ? syscall_return_slowpath+0x550/0x550 [ 33.933840] ? syscall_return_slowpath+0x2ac/0x550 [ 33.938739] ? prepare_exit_to_usermode+0x350/0x350 [ 33.943732] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 33.949070] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.953884] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 33.959046] RIP: 0033:0x43fcb9 [ 33.962205] RSP: 002b:00007ffddc6c3d98 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 33.969886] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 33.977126] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 33.984368] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 33.991606] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 33.998852] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 34.006110] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 4c 3d 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 [ 34.025188] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b0e07cc8 [ 34.031807] ---[ end trace 4e3cbfe7dfe7e3e3 ]--- [ 34.036565] Kernel panic - not syncing: Fatal exception [ 34.042313] Dumping ftrace buffer: [ 34.045830] (ftrace buffer empty) [ 34.049509] Kernel Offset: disabled [ 34.053103] Rebooting in 86400 seconds..