[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 18.483096] audit: type=1400 audit(1521117168.491:6): avc: denied { map } for pid=4227 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 '10.128.10.19' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.805565] audit: type=1400 audit(1521117174.814:7): avc: denied { map } for pid=4241 comm="syzkaller245059" path="/root/syzkaller245059372" 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 [ 30.175102] kasan: CONFIG_KASAN_INLINE enabled [ 30.179783] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.187150] general protection fault: 0000 [#1] SMP KASAN [ 30.192664] Dumping ftrace buffer: [ 30.196171] (ftrace buffer empty) [ 30.199849] Modules linked in: [ 30.203017] CPU: 1 PID: 4241 Comm: syzkaller245059 Not tainted 4.16.0-rc5+ #264 [ 30.210431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.219761] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.224830] RSP: 0018:ffff8801b0977c78 EFLAGS: 00010206 [ 30.230161] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 30.237397] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.244634] RBP: ffff8801b0977c90 R08: 0000000000000000 R09: 1ffff1003612ef0b [ 30.251870] R10: ffff8801b0977820 R11: 0000000000000001 R12: ffff8801b16097d2 [ 30.259108] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b0977d08 [ 30.266349] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009bee840 [ 30.274540] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.280390] CR2: 00007fc598c2f000 CR3: 00000001c2c1e006 CR4: 00000000001606e0 [ 30.287630] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.294867] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.302103] Call Trace: [ 30.304663] smc_shutdown+0x3ed/0x540 [ 30.308433] SyS_shutdown+0x137/0x290 [ 30.312200] ? SyS_getsockopt+0x340/0x340 [ 30.316320] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.321832] ? do_fast_syscall_32+0x156/0xf9f [ 30.326301] ? SyS_getsockopt+0x340/0x340 [ 30.330417] do_fast_syscall_32+0x3ec/0xf9f [ 30.334713] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.339268] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.343992] ? syscall_return_slowpath+0x550/0x550 [ 30.348896] ? syscall_return_slowpath+0x2ac/0x550 [ 30.353797] ? prepare_exit_to_usermode+0x350/0x350 [ 30.358784] ? sysret32_from_system_call+0x5/0x3c [ 30.363597] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.368409] entry_SYSENTER_compat+0x70/0x7f [ 30.372785] RIP: 0023:0xf7ff7c99 [ 30.376117] RSP: 002b:00000000ff81285c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 30.383790] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 30.391033] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 30.398275] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.405513] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.412749] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.419992] 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 [ 30.439065] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b0977c78 [ 30.445660] ---[ end trace d44e60b718606ad1 ]--- [ 30.450406] Kernel panic - not syncing: Fatal exception [ 30.456127] Dumping ftrace buffer: [ 30.459638] (ftrace buffer empty) [ 30.463317] Kernel Offset: disabled [ 30.466910] Rebooting in 86400 seconds..