[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 17.520513] audit: type=1400 audit(1520491882.648:6): avc: denied { map } for pid=4033 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 '10.128.0.17' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.873073] audit: type=1400 audit(1520491889.000:7): avc: denied { map } for pid=4047 comm="syzkaller330788" path="/root/syzkaller330788412" 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 [ 29.152394] kasan: CONFIG_KASAN_INLINE enabled [ 29.157188] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.164601] general protection fault: 0000 [#1] SMP KASAN [ 29.170127] Dumping ftrace buffer: [ 29.173643] (ftrace buffer empty) [ 29.177331] Modules linked in: [ 29.180504] CPU: 1 PID: 4047 Comm: syzkaller330788 Not tainted 4.16.0-rc4+ #255 [ 29.187932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.197290] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.202371] RSP: 0018:ffff8801b8a2fc78 EFLAGS: 00010206 [ 29.207710] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 29.214952] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.222220] RBP: ffff8801b8a2fc90 R08: 0000000000000000 R09: 1ffff10037145f0b [ 29.229488] R10: ffff8801b8a2f820 R11: 0000000000000001 R12: ffff8801b8e337d2 [ 29.236741] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b8a2fd08 [ 29.243984] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:000000000859d840 [ 29.252205] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.258065] CR2: 0000000001407928 CR3: 00000001cec26001 CR4: 00000000001606e0 [ 29.265310] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.272580] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.280370] Call Trace: [ 29.282939] smc_shutdown+0x3ed/0x540 [ 29.286718] SyS_shutdown+0x137/0x290 [ 29.290495] ? SyS_getsockopt+0x340/0x340 [ 29.294623] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.300132] ? do_fast_syscall_32+0x156/0xf9f [ 29.304599] ? SyS_getsockopt+0x340/0x340 [ 29.308722] do_fast_syscall_32+0x3ec/0xf9f [ 29.313028] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.317594] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.322335] ? syscall_return_slowpath+0x550/0x550 [ 29.327242] ? syscall_return_slowpath+0x2ac/0x550 [ 29.332149] ? prepare_exit_to_usermode+0x350/0x350 [ 29.337150] ? sysret32_from_system_call+0x5/0x3c [ 29.341972] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.346794] entry_SYSENTER_compat+0x70/0x7f [ 29.351192] RIP: 0023:0xf7fc8c99 [ 29.354544] RSP: 002b:00000000ffb0aeec EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.362423] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.369684] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 29.376936] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.384191] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.391453] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.398727] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 1c 2f 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 [ 29.417813] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b8a2fc78 [ 29.424424] ---[ end trace 7ed3b499bf6d085c ]--- [ 29.429201] Kernel panic - not syncing: Fatal exception [ 29.435016] Dumping ftrace buffer: [ 29.438535] (ftrace buffer empty) [ 29.442221] Kernel Offset: disabled [ 29.445822] Rebooting in 86400 seconds..