[?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. [ 17.502725] audit: type=1400 audit(1519527569.640:6): avc: denied { map } for pid=4220 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 '10.128.15.199' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.831557] audit: type=1400 audit(1519527575.969:7): avc: denied { map } for pid=4234 comm="syzkaller321210" path="/root/syzkaller321210364" 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 [ 29.152130] kasan: CONFIG_KASAN_INLINE enabled [ 29.156831] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.164373] general protection fault: 0000 [#1] SMP KASAN [ 29.169899] Dumping ftrace buffer: [ 29.173408] (ftrace buffer empty) [ 29.177089] Modules linked in: [ 29.180257] CPU: 0 PID: 4234 Comm: syzkaller321210 Not tainted 4.16.0-rc2+ #328 [ 29.187670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.197000] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.202077] RSP: 0018:ffff8801aeb7fcc8 EFLAGS: 00010206 [ 29.207409] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff846026f4 [ 29.214650] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.221897] RBP: ffff8801aeb7fce0 R08: 0000000000000000 R09: 1ffff10035d6ff15 [ 29.229138] R10: ffff8801aeb7f870 R11: 0000000000000001 R12: ffff8801b7ff87d2 [ 29.236377] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801aeb7fd58 [ 29.243618] FS: 0000000001f1d880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 29.251812] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.257661] CR2: 00000000026be540 CR3: 00000001d42ef001 CR4: 00000000001606f0 [ 29.264904] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.272151] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.279388] Call Trace: [ 29.281953] smc_shutdown+0x3ed/0x540 [ 29.285725] SyS_shutdown+0x137/0x290 [ 29.289496] ? SyS_getsockopt+0x340/0x340 [ 29.293617] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.299122] ? do_syscall_64+0xb6/0x940 [ 29.303065] ? SyS_getsockopt+0x340/0x340 [ 29.307184] do_syscall_64+0x280/0x940 [ 29.311041] ? __do_page_fault+0xc90/0xc90 [ 29.315245] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.319970] ? syscall_return_slowpath+0x550/0x550 [ 29.324869] ? syscall_return_slowpath+0x2ac/0x550 [ 29.329772] ? prepare_exit_to_usermode+0x350/0x350 [ 29.334757] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.340093] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.344908] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.350065] RIP: 0033:0x43fcb9 [ 29.353222] RSP: 002b:00007fff1d534178 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 29.360899] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043fcb9 [ 29.368140] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 29.375379] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 29.382618] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 29.389864] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 29.397108] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ac e5 10 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 [ 29.416176] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801aeb7fcc8 [ 29.422794] ---[ end trace 3af56b4160ff5d0c ]--- [ 29.427547] Kernel panic - not syncing: Fatal exception [ 29.433310] Dumping ftrace buffer: [ 29.436821] (ftrace buffer empty) [ 29.440498] Kernel Offset: disabled [ 29.444095] Rebooting in 86400 seconds..