[?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. [ 17.282997] audit: type=1400 audit(1518172736.239:6): avc: denied { map } for pid=3952 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 '10.128.0.6' (ECDSA) to the list of known hosts. net.ipv6.conf.syz1.accept_dad = 0 syzkaller login: [ 23.592551] audit: type=1400 audit(1518172742.549:7): avc: denied { map } for pid=3966 comm="syzkaller145404" path="/root/syzkaller145404438" 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 net.ipv6.conf.syz5.accept_dad = 0 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz0.router_solicitations = 0 RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 25.463663] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.764099] kasan: CONFIG_KASAN_INLINE enabled [ 32.768957] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.776372] general protection fault: 0000 [#1] SMP KASAN [ 32.781967] Dumping ftrace buffer: [ 32.785497] (ftrace buffer empty) [ 32.789197] Modules linked in: [ 32.792388] CPU: 0 PID: 7442 Comm: syzkaller145404 Not tainted 4.15.0+ #215 [ 32.799478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.808836] RIP: 0010:pppol2tp_connect+0x10a3/0x1dd0 executing program executing program executing program [ 32.813929] RSP: 0018:ffff8801c1ddf958 EFLAGS: 00010202 [ 32.819369] RAX: dffffc0000000000 RBX: ffff8801c4ccf400 RCX: ffffffff851ac3a0 [ 32.826631] RDX: 0000000000000045 RSI: 00000000418d701c RDI: 0000000000000228 [ 32.833904] RBP: ffff8801c1ddfbd8 R08: 1ffff100383bbe6d R09: 0000000000000002 [ 32.841163] R10: ffff8801c1ddf828 R11: 0000000000000000 R12: ffff8801b9748900 [ 32.848410] R13: ffff8801c1ddfbb0 R14: 0000000000000000 R15: ffff8801c1ddfa90 [ 32.855658] FS: 0000000000000000(0000) GS:ffff8801db400000(0063) knlGS:00000000f7f2eb40 [ 32.863869] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 32.869740] CR2: 00000000205fafd2 CR3: 00000001d02b1004 CR4: 00000000001606f0 [ 32.876985] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.884244] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.891574] Call Trace: [ 32.894160] ? pppol2tp_recv_payload_hook+0x1b0/0x1b0 [ 32.899325] ? selinux_netlbl_socket_connect+0x76/0x1b0 [ 32.904676] ? selinux_socket_connect+0x311/0x730 [ 32.909498] ? lock_downgrade+0x980/0x980 [ 32.913621] ? selinux_socket_setsockopt+0x80/0x80 [ 32.918520] ? lock_release+0xa40/0xa40 [ 32.922467] ? trace_event_raw_event_sched_switch+0x810/0x810 [ 32.928327] ? __check_object_size+0x8b/0x530 [ 32.932811] ? __might_sleep+0x95/0x190 [ 32.936774] ? security_socket_connect+0x89/0xb0 [ 32.941510] SYSC_connect+0x213/0x4a0 [ 32.945286] ? SYSC_bind+0x410/0x410 [ 32.948976] ? handle_mm_fault+0x43b/0x970 [ 32.953184] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 32.957746] ? vmacache_find+0x5f/0x280 [ 32.961699] ? up_read+0x1a/0x40 [ 32.965042] ? __do_page_fault+0x3d6/0xc90 [ 32.969255] SyS_connect+0x24/0x30 [ 32.972769] ? SyS_accept+0x30/0x30 [ 32.976370] do_fast_syscall_32+0x3ee/0xfa1 [ 32.980676] ? do_int80_syscall_32+0x9d0/0x9d0 [ 32.985235] ? finish_task_switch+0x1e2/0x890 [ 32.989720] ? finish_task_switch+0x1b9/0x890 [ 32.994207] ? syscall_return_slowpath+0x2ac/0x550 [ 32.999112] ? prepare_exit_to_usermode+0x350/0x350 [ 33.004107] ? retint_user+0x18/0x18 [ 33.007813] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.012635] entry_SYSENTER_compat+0x54/0x63 [ 33.017021] RIP: 0023:0xf7f32c79 [ 33.020374] RSP: 002b:00000000f7f2e19c EFLAGS: 00000292 ORIG_RAX: 000000000000016a [ 33.028054] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000205fafd2 [ 33.035295] RDX: 000000000000002e RSI: 0000000000000000 RDI: 0000000000000000 [ 33.042538] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.049782] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 33.057031] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.064282] Code: fe ff ff e8 d0 e6 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 [ 33.083362] RIP: pppol2tp_connect+0x10a3/0x1dd0 RSP: ffff8801c1ddf958 [ 33.089959] ---[ end trace 49345c10e1611d88 ]--- [ 33.094735] Kernel panic - not syncing: Fatal exception [ 33.100507] Dumping ftrace buffer: [ 33.104026] (ftrace buffer empty) [ 33.107704] Kernel Offset: disabled [ 33.111301] Rebooting in 86400 seconds..