[?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. [ 19.097780] audit: type=1400 audit(1520866148.007:6): avc: denied { map } for pid=4189 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 '10.128.0.32' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.449383] audit: type=1400 audit(1520866154.359:7): avc: denied { map } for pid=4203 comm="syzkaller136016" path="/root/syzkaller136016140" 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 [ 30.687275] kasan: CONFIG_KASAN_INLINE enabled [ 30.691955] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.699518] general protection fault: 0000 [#1] SMP KASAN [ 30.705029] Dumping ftrace buffer: [ 30.708545] (ftrace buffer empty) [ 30.712226] Modules linked in: [ 30.715390] CPU: 1 PID: 4203 Comm: syzkaller136016 Not tainted 4.16.0-rc5+ #261 [ 30.722802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.732131] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.737202] RSP: 0018:ffff8801bd6bfc78 EFLAGS: 00010206 [ 30.742533] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fe6f4 [ 30.749775] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.757015] RBP: ffff8801bd6bfc90 R08: 0000000000000000 R09: 1ffff10037ad7f0b [ 30.764260] R10: ffff8801bd6bf820 R11: 0000000000000001 R12: ffff8801bd67e7d2 [ 30.771500] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801bd6bfd08 [ 30.778740] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000008668840 [ 30.786935] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.792784] CR2: 00000000013b06d0 CR3: 00000001beab7004 CR4: 00000000001606e0 [ 30.800023] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.807264] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.814503] Call Trace: [ 30.817061] smc_shutdown+0x3ed/0x540 [ 30.820833] SyS_shutdown+0x137/0x290 [ 30.824601] ? SyS_getsockopt+0x340/0x340 [ 30.828719] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.834222] ? do_fast_syscall_32+0x156/0xf9f [ 30.838686] ? SyS_getsockopt+0x340/0x340 [ 30.842800] do_fast_syscall_32+0x3ec/0xf9f [ 30.847092] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.851645] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.856369] ? syscall_return_slowpath+0x550/0x550 [ 30.861265] ? syscall_return_slowpath+0x2ac/0x550 [ 30.866163] ? prepare_exit_to_usermode+0x350/0x350 [ 30.871151] ? sysret32_from_system_call+0x5/0x3c [ 30.875961] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.880781] entry_SYSENTER_compat+0x70/0x7f [ 30.885155] RIP: 0023:0xf7f9bc99 [ 30.888486] RSP: 002b:00000000ffdb076c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 30.896160] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 30.903400] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 30.910638] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.917875] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.925112] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.932355] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ac 30 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 [ 30.951425] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801bd6bfc78 [ 30.958021] ---[ end trace 4f334240fe36d93d ]--- [ 30.962754] Kernel panic - not syncing: Fatal exception [ 30.968457] Dumping ftrace buffer: [ 30.971969] (ftrace buffer empty) [ 30.975648] Kernel Offset: disabled [ 30.979246] Rebooting in 86400 seconds..