[?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. [ 17.478111] audit: type=1400 audit(1518444664.968:6): avc: denied { map } for pid=4119 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 '10.128.0.2' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 41.367770] audit: type=1400 audit(1518444688.858:7): avc: denied { map } for pid=4137 comm="syzkaller409714" path="/root/syzkaller409714234" 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 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 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 [ 43.568127] kasan: CONFIG_KASAN_INLINE enabled [ 43.572796] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 43.580164] general protection fault: 0000 [#1] SMP KASAN [ 43.585669] Dumping ftrace buffer: [ 43.589176] (ftrace buffer empty) [ 43.592857] Modules linked in: [ 43.596019] CPU: 0 PID: 4494 Comm: syzkaller409714 Not tainted 4.16.0-rc1+ #219 [ 43.603432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.612762] RIP: 0010:pppol2tp_connect+0x10a3/0x1dd0 [ 43.617836] RSP: 0018:ffff8801b5857958 EFLAGS: 00010202 [ 43.623171] RAX: dffffc0000000000 RBX: ffff8801b5d78340 RCX: ffffffff851b2ed0 [ 43.630415] RDX: 0000000000000045 RSI: 00000000154c0643 RDI: 0000000000000228 [ 43.637665] RBP: ffff8801b5857bd8 R08: 1ffff10036b0ae6d R09: 0000000000000002 [ 43.644907] R10: ffff8801b5857828 R11: 0000000000000000 R12: ffff8801b59bc940 [ 43.652148] R13: ffff8801b5857bb0 R14: 0000000000000000 R15: ffff8801b5857a90 [ 43.659389] FS: 0000000000000000(0000) GS:ffff8801db400000(0063) knlGS:000000000837e840 [ 43.667583] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 43.673433] CR2: 0000000020e71000 CR3: 00000001b5b8a001 CR4: 00000000001606f0 [ 43.680677] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.687916] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.695156] Call Trace: [ 43.697724] ? pppol2tp_recv_payload_hook+0x1b0/0x1b0 [ 43.702887] ? selinux_netlbl_socket_connect+0x76/0x1b0 [ 43.708222] ? selinux_socket_connect+0x311/0x730 [ 43.713034] ? lock_downgrade+0x980/0x980 [ 43.717154] ? selinux_socket_setsockopt+0x80/0x80 [ 43.722052] ? lock_release+0xa40/0xa40 [ 43.725997] ? trace_event_raw_event_sched_switch+0x810/0x810 [ 43.731861] ? __check_object_size+0x8b/0x530 [ 43.736344] ? __might_sleep+0x95/0x190 [ 43.740302] ? security_socket_connect+0x89/0xb0 [ 43.745042] SYSC_connect+0x213/0x4a0 [ 43.748817] ? SYSC_bind+0x410/0x410 [ 43.752507] ? handle_mm_fault+0x43b/0x970 [ 43.756719] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 43.761270] ? vmacache_find+0x5f/0x280 [ 43.765220] ? up_read+0x1a/0x40 [ 43.768564] ? __do_page_fault+0x3d6/0xc90 [ 43.772786] SyS_connect+0x24/0x30 [ 43.776299] ? SyS_accept+0x30/0x30 [ 43.779897] do_fast_syscall_32+0x3ee/0xfa1 [ 43.784194] ? do_int80_syscall_32+0x9d0/0x9d0 [ 43.788746] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 43.793472] ? syscall_return_slowpath+0x2ac/0x550 [ 43.798373] ? prepare_exit_to_usermode+0x350/0x350 [ 43.803360] ? retint_user+0x18/0x18 [ 43.807047] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.811864] entry_SYSENTER_compat+0x54/0x63 [ 43.816240] RIP: 0023:0xf7fbac79 [ 43.819572] RSP: 002b:00000000ffaabb7c EFLAGS: 00000282 ORIG_RAX: 000000000000016a [ 43.827249] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020e71000 [ 43.834491] RDX: 0000000000000032 RSI: 00000000080d74a0 RDI: 00000000080f1964 [ 43.841733] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 43.848971] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 43.856208] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 43.863453] Code: fe ff ff e8 80 ce 55 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 [ 43.882520] RIP: pppol2tp_connect+0x10a3/0x1dd0 RSP: ffff8801b5857958 [ 43.889102] ---[ end trace 3b9440dd8833338b ]--- [ 43.893863] Kernel panic - not syncing: Fatal exception [ 43.899695] Dumping ftrace buffer: [ 43.903210] (ftrace buffer empty) [ 43.906890] Kernel Offset: disabled [ 43.910491] Rebooting in 86400 seconds..