[?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. [ 18.617142] audit: type=1400 audit(1521558494.627:6): avc: denied { map } for pid=4215 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 '10.128.0.35' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.932755] audit: type=1400 audit(1521558500.943:7): avc: denied { map } for pid=4229 comm="syzkaller200819" path="/root/syzkaller200819889" 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 [ 30.175620] kasan: CONFIG_KASAN_INLINE enabled [ 30.180310] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.187834] general protection fault: 0000 [#1] SMP KASAN [ 30.193359] Dumping ftrace buffer: [ 30.196875] (ftrace buffer empty) [ 30.200554] Modules linked in: [ 30.203718] CPU: 1 PID: 4229 Comm: syzkaller200819 Not tainted 4.16.0-rc6+ #360 [ 30.211128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.220462] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.225534] RSP: 0018:ffff8801b315fcc8 EFLAGS: 00010206 [ 30.230864] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff846006f4 [ 30.238101] RDX: 0000000000000005 RSI: 0000000000000002 RDI: 0000000000000028 [ 30.245340] RBP: ffff8801b315fce0 R08: 0000000000000000 R09: 1ffff1003662bf15 [ 30.252577] R10: ffff8801b315f870 R11: 0000000000000001 R12: ffff8801ae6837d2 [ 30.259813] R13: 0000000000000002 R14: 0000000000000000 R15: ffff8801b315fd58 [ 30.267052] FS: 0000000000755880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 30.275250] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.281101] CR2: 0000000001a9cd40 CR3: 00000001b1c52006 CR4: 00000000001606e0 [ 30.288341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.295581] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.302820] Call Trace: [ 30.305379] smc_shutdown+0x3ed/0x540 [ 30.309149] SyS_shutdown+0x137/0x290 [ 30.312917] ? SyS_getsockopt+0x340/0x340 [ 30.317037] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.322556] ? do_syscall_64+0xb7/0x940 [ 30.326499] ? SyS_getsockopt+0x340/0x340 [ 30.330614] do_syscall_64+0x281/0x940 [ 30.334468] ? __do_page_fault+0xc90/0xc90 [ 30.338670] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.343395] ? syscall_return_slowpath+0x550/0x550 [ 30.348292] ? syscall_return_slowpath+0x2ac/0x550 [ 30.353192] ? prepare_exit_to_usermode+0x350/0x350 [ 30.358179] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.363512] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.368324] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.373481] RIP: 0033:0x43fcb9 [ 30.376639] RSP: 002b:00007fff4a344088 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 30.384312] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 30.391548] RDX: 000000000043fcb9 RSI: 0000000000000002 RDI: 0000000000000003 [ 30.398786] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 30.406026] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 30.413266] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 30.420514] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 0c 12 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 [ 30.439577] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b315fcc8 [ 30.446185] ---[ end trace c97b2a6ff4c0d2ce ]--- [ 30.450936] Kernel panic - not syncing: Fatal exception [ 30.456673] Dumping ftrace buffer: [ 30.460187] (ftrace buffer empty) [ 30.463869] Kernel Offset: disabled [ 30.467467] Rebooting in 86400 seconds..