[?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. [ 18.544441] audit: type=1400 audit(1520222135.524:6): avc: denied { map } for pid=4245 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: [ 24.981830] audit: type=1400 audit(1520222141.961:7): avc: denied { map } for pid=4259 comm="syzkaller809271" path="/root/syzkaller809271807" 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 [ 30.176117] kasan: CONFIG_KASAN_INLINE enabled [ 30.180802] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.188181] general protection fault: 0000 [#1] SMP KASAN [ 30.193696] Dumping ftrace buffer: [ 30.197204] (ftrace buffer empty) [ 30.200886] Modules linked in: [ 30.204053] CPU: 0 PID: 4259 Comm: syzkaller809271 Not tainted 4.16.0-rc3+ #250 [ 30.211464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.220794] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.225866] RSP: 0018:ffff8801b0fc7c78 EFLAGS: 00010206 [ 30.231197] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fc6f4 [ 30.238433] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.245673] RBP: ffff8801b0fc7c90 R08: 0000000000000000 R09: 1ffff100361f8f0b [ 30.252913] R10: ffff8801b0fc7820 R11: 0000000000000001 R12: ffff8801b04ab7d2 [ 30.260151] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b0fc7d08 [ 30.267393] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000009c70840 [ 30.275587] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.281437] CR2: 00007fcf4a708000 CR3: 00000001b2384003 CR4: 00000000001606f0 [ 30.288680] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.295918] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.303155] Call Trace: [ 30.305715] smc_shutdown+0x3ed/0x540 [ 30.309486] SyS_shutdown+0x137/0x290 [ 30.313255] ? SyS_getsockopt+0x340/0x340 [ 30.317383] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.322890] ? do_fast_syscall_32+0x156/0xf9f [ 30.327354] ? SyS_getsockopt+0x340/0x340 [ 30.331473] do_fast_syscall_32+0x3ec/0xf9f [ 30.335768] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.340318] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.345044] ? syscall_return_slowpath+0x550/0x550 [ 30.349948] ? syscall_return_slowpath+0x2ac/0x550 [ 30.354848] ? prepare_exit_to_usermode+0x350/0x350 [ 30.359833] ? sysret32_from_system_call+0x5/0x3c [ 30.364645] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.369463] entry_SYSENTER_compat+0x70/0x7f [ 30.373839] RIP: 0023:0xf7fd6c99 [ 30.377171] RSP: 002b:00000000ffd822cc EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 30.384845] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 30.392085] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 30.399323] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.406560] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.413797] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.421056] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 3c 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 [ 30.440129] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b0fc7c78 [ 30.446751] ---[ end trace 9d7afa4f083e5829 ]--- [ 30.451500] Kernel panic - not syncing: Fatal exception [ 30.457233] Dumping ftrace buffer: [ 30.460749] (ftrace buffer empty) [ 30.464428] Kernel Offset: disabled [ 30.468024] Rebooting in 86400 seconds..