[?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. [ 17.318141] audit: type=1400 audit(1521249150.847:6): avc: denied { map } for pid=4191 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 '10.128.0.47' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.664166] audit: type=1400 audit(1521249157.193:7): avc: denied { map } for pid=4205 comm="syzkaller894825" path="/root/syzkaller894825294" 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 [ 29.151554] kasan: CONFIG_KASAN_INLINE enabled [ 29.156311] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.163704] general protection fault: 0000 [#1] SMP KASAN [ 29.169221] Dumping ftrace buffer: [ 29.172731] (ftrace buffer empty) [ 29.176412] Modules linked in: [ 29.179576] CPU: 1 PID: 4205 Comm: syzkaller894825 Not tainted 4.16.0-rc5+ #267 [ 29.186990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.196327] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.201397] RSP: 0018:ffff8801b5a6fc78 EFLAGS: 00010206 [ 29.206729] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 29.213970] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.221210] RBP: ffff8801b5a6fc90 R08: 0000000000000000 R09: 1ffff10036b4df0b [ 29.228449] R10: ffff8801b5a6f820 R11: 0000000000000001 R12: ffff8801b5ba47d2 [ 29.235693] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b5a6fd08 [ 29.242936] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000008791840 [ 29.251134] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.256986] CR2: 00000000015213d0 CR3: 00000001b5d1f005 CR4: 00000000001606e0 [ 29.264230] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.271472] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.278712] Call Trace: [ 29.281298] smc_shutdown+0x3ed/0x540 [ 29.285076] SyS_shutdown+0x137/0x290 [ 29.288846] ? SyS_getsockopt+0x340/0x340 [ 29.292967] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.298476] ? do_fast_syscall_32+0x156/0xf9f [ 29.302942] ? SyS_getsockopt+0x340/0x340 [ 29.307059] do_fast_syscall_32+0x3ec/0xf9f [ 29.311351] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.315902] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.320629] ? syscall_return_slowpath+0x550/0x550 [ 29.325529] ? syscall_return_slowpath+0x2ac/0x550 [ 29.330431] ? prepare_exit_to_usermode+0x350/0x350 [ 29.335421] ? sysret32_from_system_call+0x5/0x3c [ 29.340234] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.345050] entry_SYSENTER_compat+0x70/0x7f [ 29.349427] RIP: 0023:0xf7fc6c99 [ 29.352759] RSP: 002b:00000000ffb0fefc EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.360435] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.367674] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 29.374911] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.382150] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.389390] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.396636] 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 [ 29.415709] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b5a6fc78 [ 29.422323] ---[ end trace d30037b8b0be564c ]--- [ 29.427074] Kernel panic - not syncing: Fatal exception [ 29.432832] Dumping ftrace buffer: [ 29.436348] (ftrace buffer empty) [ 29.440028] Kernel Offset: disabled [ 29.443623] Rebooting in 86400 seconds..