[?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. [ 18.423370] audit: type=1400 audit(1520615466.301:6): avc: denied { map } for pid=4097 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: [ 24.913778] audit: type=1400 audit(1520615472.791:7): avc: denied { map } for pid=4111 comm="syzkaller221991" path="/root/syzkaller221991871" 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 [ 30.175537] kasan: CONFIG_KASAN_INLINE enabled [ 30.180233] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.187601] general protection fault: 0000 [#1] SMP KASAN [ 30.193109] Dumping ftrace buffer: [ 30.196618] (ftrace buffer empty) [ 30.200297] Modules linked in: [ 30.203459] CPU: 1 PID: 4111 Comm: syzkaller221991 Not tainted 4.16.0-rc4+ #256 [ 30.210870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.220197] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.225265] RSP: 0018:ffff8801c0f67c78 EFLAGS: 00010206 [ 30.230597] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fc6f4 [ 30.237837] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.245074] RBP: ffff8801c0f67c90 R08: 0000000000000000 R09: 1ffff100381ecf0b [ 30.252313] R10: ffff8801c0f67820 R11: 0000000000000001 R12: ffff8801cbcaa7d2 [ 30.259550] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801c0f67d08 [ 30.266788] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000097d5840 [ 30.274979] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.280830] CR2: 0000000001830810 CR3: 00000001cc633004 CR4: 00000000001606e0 [ 30.288076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.295316] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.302555] Call Trace: [ 30.305115] smc_shutdown+0x3ed/0x540 [ 30.308887] SyS_shutdown+0x137/0x290 [ 30.312657] ? SyS_getsockopt+0x340/0x340 [ 30.316776] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.322282] ? do_fast_syscall_32+0x156/0xf9f [ 30.326744] ? SyS_getsockopt+0x340/0x340 [ 30.330862] do_fast_syscall_32+0x3ec/0xf9f [ 30.335154] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.339703] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.344429] ? syscall_return_slowpath+0x550/0x550 [ 30.349326] ? syscall_return_slowpath+0x2ac/0x550 [ 30.354222] ? prepare_exit_to_usermode+0x350/0x350 [ 30.359207] ? sysret32_from_system_call+0x5/0x3c [ 30.364020] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.368833] entry_SYSENTER_compat+0x70/0x7f [ 30.373206] RIP: 0023:0xf7f61c99 [ 30.376538] RSP: 002b:00000000ff909d4c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 30.384212] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 30.391451] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 30.398689] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.405924] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.413159] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.420403] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 1c 3f 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 [ 30.439466] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801c0f67c78 [ 30.446078] ---[ end trace ffb8baaf36b01f84 ]--- [ 30.450816] Kernel panic - not syncing: Fatal exception [ 30.456483] Dumping ftrace buffer: [ 30.459988] (ftrace buffer empty) [ 30.463668] Kernel Offset: disabled [ 30.467266] Rebooting in 86400 seconds..