[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 19.071065] audit: type=1400 audit(1521756789.421:6): avc: denied { map } for pid=4209 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 '10.128.10.1' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.887609] audit: type=1400 audit(1521756796.238:7): avc: denied { map } for pid=4223 comm="syzkaller402804" path="/root/syzkaller402804940" 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 [ 31.200178] kasan: CONFIG_KASAN_INLINE enabled [ 31.204901] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 31.212511] general protection fault: 0000 [#1] SMP KASAN [ 31.218034] Dumping ftrace buffer: [ 31.221546] (ftrace buffer empty) [ 31.225228] Modules linked in: [ 31.228395] CPU: 1 PID: 4223 Comm: syzkaller402804 Not tainted 4.16.0-rc6+ #271 [ 31.235810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.245146] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 31.250230] RSP: 0018:ffff8801b3df7c78 EFLAGS: 00010206 [ 31.255562] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff846006f4 [ 31.262800] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 31.270041] RBP: ffff8801b3df7c90 R08: 0000000000000000 R09: 1ffff100367bef0b [ 31.277280] R10: ffff8801b3df7820 R11: 0000000000000001 R12: ffff8801b4ecd7d2 [ 31.284520] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b3df7d08 [ 31.291761] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000008f5f840 [ 31.299955] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 31.305808] CR2: 00007fbf2b4fb000 CR3: 00000001b3de1005 CR4: 00000000001606e0 [ 31.313049] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.320291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.327796] Call Trace: [ 31.330360] smc_shutdown+0x3ed/0x540 [ 31.334137] SyS_shutdown+0x137/0x290 [ 31.337906] ? SyS_getsockopt+0x340/0x340 [ 31.342031] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 31.347539] ? do_fast_syscall_32+0x156/0xf9f [ 31.352004] ? SyS_getsockopt+0x340/0x340 [ 31.356121] do_fast_syscall_32+0x3ec/0xf9f [ 31.360419] ? do_int80_syscall_32+0x9c0/0x9c0 [ 31.364971] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.369696] ? syscall_return_slowpath+0x550/0x550 [ 31.374592] ? syscall_return_slowpath+0x2ac/0x550 [ 31.379492] ? prepare_exit_to_usermode+0x350/0x350 [ 31.384479] ? sysret32_from_system_call+0x5/0x3c [ 31.389296] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.394114] entry_SYSENTER_compat+0x70/0x7f [ 31.398495] RIP: 0023:0xf7feec99 [ 31.401833] RSP: 002b:00000000ff9b927c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 31.409509] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 31.416748] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 31.423985] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 31.431225] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 31.438471] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 31.445722] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 0c 12 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 [ 31.464798] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b3df7c78 [ 31.471433] ---[ end trace 6516ae15d51ba5c3 ]--- [ 31.476175] Kernel panic - not syncing: Fatal exception [ 31.481850] Dumping ftrace buffer: [ 31.485358] (ftrace buffer empty) [ 31.489041] Kernel Offset: disabled [ 31.492639] Rebooting in 86400 seconds..