[?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. [ 19.278797] audit: type=1400 audit(1520291496.650:6): 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 '10.128.0.15' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 25.638104] audit: type=1400 audit(1520291503.009:7): avc: denied { map } for pid=4241 comm="syzkaller639686" path="/root/syzkaller639686621" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.819147] kasan: CONFIG_KASAN_INLINE enabled [ 26.823835] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.831215] general protection fault: 0000 [#1] SMP KASAN [ 26.836736] Dumping ftrace buffer: [ 26.840245] (ftrace buffer empty) [ 26.843923] Modules linked in: [ 26.847087] CPU: 0 PID: 4625 Comm: syzkaller639686 Not tainted 4.16.0-rc4+ #341 [ 26.854498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.863839] RIP: 0010:pppol2tp_connect+0x10a3/0x1dd0 [ 26.868909] RSP: 0018:ffff8801b70df9a8 EFLAGS: 00010202 [ 26.874239] RAX: dffffc0000000000 RBX: ffff8801aeef4b80 RCX: ffffffff854a7e70 [ 26.881477] RDX: 0000000000000045 RSI: 000000004af92fbb RDI: 0000000000000228 [ 26.888714] RBP: ffff8801b70dfc28 R08: 1ffff10036e1be77 R09: 0000000000000002 [ 26.895955] R10: ffff8801b70df878 R11: 0000000000000000 R12: ffff8801af1fe4c0 [ 26.903193] R13: ffff8801b70dfc00 R14: 0000000000000000 R15: ffff8801b70dfae0 [ 26.910432] FS: 00007f0fd8e27700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 26.918624] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.924473] CR2: 00007f0fd8e26e78 CR3: 00000001af6fa003 CR4: 00000000001606f0 [ 26.931711] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.938949] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.946187] Call Trace: [ 26.948750] ? pppol2tp_recv_payload_hook+0x1b0/0x1b0 [ 26.953913] ? selinux_netlbl_socket_connect+0x76/0x1b0 [ 26.959249] ? selinux_socket_connect+0x311/0x730 [ 26.964060] ? lock_downgrade+0x980/0x980 [ 26.968177] ? selinux_socket_setsockopt+0x80/0x80 [ 26.973076] ? lock_release+0xa40/0xa40 [ 26.977026] ? check_same_owner+0x320/0x320 [ 26.981327] ? __check_object_size+0x8b/0x530 [ 26.985802] ? __might_sleep+0x95/0x190 [ 26.989751] ? security_socket_connect+0x89/0xb0 [ 26.994480] SYSC_connect+0x213/0x4a0 [ 26.998252] ? SYSC_bind+0x410/0x410 [ 27.001937] ? find_held_lock+0x35/0x1d0 [ 27.005988] ? lock_release+0xa40/0xa40 [ 27.009940] ? __switch_to+0x6df/0x13c0 [ 27.013884] ? do_raw_spin_trylock+0x190/0x190 [ 27.018438] SyS_connect+0x24/0x30 [ 27.021948] ? SyS_accept+0x30/0x30 [ 27.025547] do_syscall_64+0x281/0x940 [ 27.029403] ? _raw_spin_unlock_irq+0x27/0x70 [ 27.033866] ? finish_task_switch+0x1c1/0x7e0 [ 27.038334] ? syscall_return_slowpath+0x550/0x550 [ 27.043233] ? syscall_return_slowpath+0x2ac/0x550 [ 27.048132] ? prepare_exit_to_usermode+0x350/0x350 [ 27.053123] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 27.058463] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.063281] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 27.068437] RIP: 0033:0x4468e9 [ 27.071596] RSP: 002b:00007f0fd8e26db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 27.079272] RAX: ffffffffffffffda RBX: 00000000006e29fc RCX: 00000000004468e9 [ 27.086511] RDX: 000000000000002e RSI: 0000000020000040 RDI: 0000000000000006 [ 27.093751] RBP: 00000000006e29f8 R08: 00007f0fd8e27700 R09: 0000000000000000 [ 27.100991] R10: 00007f0fd8e27700 R11: 0000000000000246 R12: 0000000000000000 [ 27.108234] R13: 00007ffd088845bf R14: 00007f0fd8e279c0 R15: 0000000000000003 [ 27.115480] Code: fe ff ff e8 c0 87 26 fc 4c 89 fa 49 8d be 28 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 c6 04 02 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 df 09 00 00 4c 89 fa 48 b8 00 00 00 00 00 fc [ 27.134549] RIP: pppol2tp_connect+0x10a3/0x1dd0 RSP: ffff8801b70df9a8 [ 27.141181] ---[ end trace 7b13c362c6362ca2 ]--- [ 27.145929] Kernel panic - not syncing: Fatal exception [ 27.151708] Dumping ftrace buffer: [ 27.155223] (ftrace buffer empty) [ 27.158903] Kernel Offset: disabled [ 27.162498] Rebooting in 86400 seconds..