[?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. [ 18.735886] audit: type=1400 audit(1520630441.436:6): avc: denied { map } for pid=4227 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 '10.128.0.55' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.092360] audit: type=1400 audit(1520630447.793:7): avc: denied { map } for pid=4241 comm="syzkaller720446" path="/root/syzkaller720446864" 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 [ 30.176145] kasan: CONFIG_KASAN_INLINE enabled [ 30.180866] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.188451] general protection fault: 0000 [#1] SMP KASAN [ 30.193977] Dumping ftrace buffer: [ 30.197490] (ftrace buffer empty) [ 30.201171] Modules linked in: [ 30.204338] CPU: 0 PID: 4241 Comm: syzkaller720446 Not tainted 4.16.0-rc4+ #347 [ 30.211764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.221101] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.226177] RSP: 0018:ffff8801b0cd7cc8 EFLAGS: 00010206 [ 30.231515] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 30.238762] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.246019] RBP: ffff8801b0cd7ce0 R08: 0000000000000000 R09: 1ffff1003619af15 [ 30.253272] R10: ffff8801b0cd7870 R11: 0000000000000001 R12: ffff8801b11a87d2 [ 30.260518] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b0cd7d58 [ 30.267764] FS: 0000000001636880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 30.275976] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.281839] CR2: 00007f6742f83000 CR3: 00000001b11e6002 CR4: 00000000001606f0 [ 30.289089] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.296334] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.303589] Call Trace: [ 30.306159] smc_shutdown+0x3ed/0x540 [ 30.309948] SyS_shutdown+0x137/0x290 [ 30.313727] ? SyS_getsockopt+0x340/0x340 [ 30.317855] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.323365] ? do_syscall_64+0xb7/0x940 [ 30.327313] ? SyS_getsockopt+0x340/0x340 [ 30.331437] do_syscall_64+0x281/0x940 [ 30.335310] ? __do_page_fault+0xc90/0xc90 [ 30.339534] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.344283] ? syscall_return_slowpath+0x550/0x550 [ 30.349186] ? syscall_return_slowpath+0x2ac/0x550 [ 30.354094] ? prepare_exit_to_usermode+0x350/0x350 [ 30.359089] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.364431] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.369349] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.374516] RIP: 0033:0x43fcb9 [ 30.377706] RSP: 002b:00007fff5d31e7f8 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 30.385394] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 30.392641] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 30.399899] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 30.407142] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 30.414405] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 30.421659] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 5c 2f 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 [ 30.440736] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b0cd7cc8 [ 30.447377] ---[ end trace 12686e084c214aa6 ]--- [ 30.452148] Kernel panic - not syncing: Fatal exception [ 30.458156] Dumping ftrace buffer: [ 30.461671] (ftrace buffer empty) [ 30.465371] Kernel Offset: disabled [ 30.468979] Rebooting in 86400 seconds..