[?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. [ 17.356744] audit: type=1400 audit(1520174856.751:6): avc: denied { map } for pid=4051 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 '10.128.0.21' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.722862] audit: type=1400 audit(1520174863.117:7): avc: denied { map } for pid=4065 comm="syzkaller377202" path="/root/syzkaller377202491" 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 [ 29.151131] kasan: CONFIG_KASAN_INLINE enabled [ 29.155847] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.163240] general protection fault: 0000 [#1] SMP KASAN [ 29.168846] Dumping ftrace buffer: [ 29.172364] (ftrace buffer empty) [ 29.176046] Modules linked in: [ 29.179212] CPU: 0 PID: 4065 Comm: syzkaller377202 Not tainted 4.16.0-rc3+ #339 [ 29.186657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.195996] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.201071] RSP: 0018:ffff8801ce26fcc8 EFLAGS: 00010206 [ 29.206410] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fc6f4 [ 29.213652] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.220906] RBP: ffff8801ce26fce0 R08: 0000000000000000 R09: 1ffff10039c4df15 [ 29.228146] R10: ffff8801ce26f870 R11: 0000000000000001 R12: ffff8801cf9bf7d2 [ 29.235388] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801ce26fd58 [ 29.242638] FS: 00000000008e2880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 29.250834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.256684] CR2: 00007f39aa2df000 CR3: 00000001b7e50001 CR4: 00000000001606f0 [ 29.263925] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.271262] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.278514] Call Trace: [ 29.281083] smc_shutdown+0x3ed/0x540 [ 29.284857] SyS_shutdown+0x137/0x290 [ 29.288629] ? SyS_getsockopt+0x340/0x340 [ 29.292754] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.298264] ? do_syscall_64+0xb7/0x940 [ 29.302209] ? SyS_getsockopt+0x340/0x340 [ 29.306331] do_syscall_64+0x281/0x940 [ 29.310193] ? __do_page_fault+0xc90/0xc90 [ 29.314398] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.319123] ? syscall_return_slowpath+0x550/0x550 [ 29.324030] ? syscall_return_slowpath+0x2ac/0x550 [ 29.328931] ? prepare_exit_to_usermode+0x350/0x350 [ 29.333923] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.339270] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.344089] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.349249] RIP: 0033:0x43fcb9 [ 29.352417] RSP: 002b:00007ffe81ec60a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 29.360098] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 29.367514] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 29.374757] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 29.381997] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 29.389244] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 29.396495] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 4c 3d 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 [ 29.415619] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801ce26fcc8 [ 29.422604] ---[ end trace 6b61c36d18bdb1b8 ]--- [ 29.427358] Kernel panic - not syncing: Fatal exception [ 29.433135] Dumping ftrace buffer: [ 29.436648] (ftrace buffer empty) [ 29.440330] Kernel Offset: disabled [ 29.443929] Rebooting in 86400 seconds..