[?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. [ 18.415634] audit: type=1400 audit(1520368155.153:6): avc: denied { map } for pid=4121 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 '10.128.0.10' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.737236] audit: type=1400 audit(1520368161.475:7): avc: denied { map } for pid=4135 comm="syzkaller173958" path="/root/syzkaller173958926" 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 [ 30.175144] kasan: CONFIG_KASAN_INLINE enabled [ 30.179873] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.187270] general protection fault: 0000 [#1] SMP KASAN [ 30.192779] Dumping ftrace buffer: [ 30.196298] (ftrace buffer empty) [ 30.199980] Modules linked in: [ 30.203145] CPU: 1 PID: 4135 Comm: syzkaller173958 Not tainted 4.16.0-rc4+ #343 [ 30.210561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.219903] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.224973] RSP: 0018:ffff8801c5547cc8 EFLAGS: 00010206 [ 30.230308] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 30.237547] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.244787] RBP: ffff8801c5547ce0 R08: 0000000000000000 R09: 1ffff10038aa8f15 [ 30.252025] R10: ffff8801c5547870 R11: 0000000000000001 R12: ffff8801c902c7d2 [ 30.259265] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801c5547d58 [ 30.266505] FS: 000000000097a880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 30.274698] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.280547] CR2: 00007f782b34f000 CR3: 00000001c55a9001 CR4: 00000000001606e0 [ 30.287787] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.295027] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.302264] Call Trace: [ 30.304836] smc_shutdown+0x3ed/0x540 [ 30.308609] SyS_shutdown+0x137/0x290 [ 30.312379] ? SyS_getsockopt+0x340/0x340 [ 30.316502] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.322006] ? do_syscall_64+0xb7/0x940 [ 30.325947] ? SyS_getsockopt+0x340/0x340 [ 30.330063] do_syscall_64+0x281/0x940 [ 30.333919] ? __do_page_fault+0xc90/0xc90 [ 30.338123] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.342854] ? syscall_return_slowpath+0x550/0x550 [ 30.347754] ? syscall_return_slowpath+0x2ac/0x550 [ 30.352657] ? prepare_exit_to_usermode+0x350/0x350 [ 30.357646] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.362978] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.367791] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.372949] RIP: 0033:0x43fcb9 [ 30.376110] RSP: 002b:00007fff6ef03088 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 30.383796] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 30.391046] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 30.398287] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 30.405535] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 30.412784] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 30.420034] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 3c 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 [ 30.439364] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801c5547cc8 [ 30.445981] ---[ end trace 69dd149b11313991 ]--- [ 30.450733] Kernel panic - not syncing: Fatal exception [ 30.456456] Dumping ftrace buffer: [ 30.459974] (ftrace buffer empty) [ 30.463742] Kernel Offset: disabled [ 30.467340] Rebooting in 86400 seconds..