[?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. [ 18.168622] audit: type=1400 audit(1519791627.195:6): avc: denied { map } for pid=4210 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 '10.128.0.18' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.492508] audit: type=1400 audit(1519791636.519:7): avc: denied { map } for pid=4225 comm="syzkaller981725" path="/root/syzkaller981725487" 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 [ 32.735299] kasan: CONFIG_KASAN_INLINE enabled [ 32.739966] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.747410] general protection fault: 0000 [#1] SMP KASAN [ 32.752919] Dumping ftrace buffer: [ 32.756426] (ftrace buffer empty) [ 32.760103] Modules linked in: [ 32.763269] CPU: 1 PID: 4225 Comm: syzkaller981725 Not tainted 4.16.0-rc3+ #332 [ 32.770683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.780184] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 32.785251] RSP: 0018:ffff8801b1be7cc8 EFLAGS: 00010206 [ 32.790581] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fb6f4 [ 32.797822] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 32.805059] RBP: ffff8801b1be7ce0 R08: 0000000000000000 R09: 1ffff1003637cf15 [ 32.812296] R10: ffff8801b1be7870 R11: 0000000000000001 R12: ffff8801b1ae67d2 [ 32.819534] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b1be7d58 [ 32.826772] FS: 0000000001c09880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 32.834964] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.840815] CR2: 0000000001ccba78 CR3: 00000001b1fd9005 CR4: 00000000001606e0 [ 32.848054] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.855292] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.862529] Call Trace: [ 32.865089] smc_shutdown+0x3ed/0x540 [ 32.868858] SyS_shutdown+0x137/0x290 [ 32.872628] ? SyS_getsockopt+0x340/0x340 [ 32.876747] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 32.882253] ? do_syscall_64+0xb7/0x940 [ 32.886199] ? SyS_getsockopt+0x340/0x340 [ 32.890314] do_syscall_64+0x281/0x940 [ 32.894178] ? __do_page_fault+0xc90/0xc90 [ 32.898379] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.903103] ? syscall_return_slowpath+0x550/0x550 [ 32.908002] ? syscall_return_slowpath+0x2ac/0x550 [ 32.912900] ? prepare_exit_to_usermode+0x350/0x350 [ 32.917889] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 32.923224] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.928038] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 32.933196] RIP: 0033:0x43fcb9 [ 32.936356] RSP: 002b:00007fffe8233d88 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 32.944030] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 32.951269] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 32.958508] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 32.965745] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 32.972982] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 32.980225] 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 [ 32.999290] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b1be7cc8 [ 33.005891] ---[ end trace a07372663a2d9144 ]--- [ 33.010629] Kernel panic - not syncing: Fatal exception [ 33.016266] Dumping ftrace buffer: [ 33.019777] (ftrace buffer empty) [ 33.023460] Kernel Offset: disabled [ 33.027057] Rebooting in 86400 seconds..