qtaguid: iface_stat: create6(lo): no inet dev BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.5/7542 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 0 PID: 7542 Comm: syz-executor.5 Not tainted 4.4.174+ #4 0000000000000000 607c2e7aab11b2e1 ffff8800b3857678 ffffffff81aad1a1 ffff8800bab32f80 0000000000000000 ffffffff82a861e0 ffffffff8292c040 0000000000000002 ffff8800b38576b8 ffffffff81b0ad83 ffff8800003dcf00 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [] check_preemption_disabled+0x1d3/0x200 lib/smp_processor_id.c:46 [] __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 [] tcp_try_coalesce net/ipv4/tcp_input.c:4293 [inline] [] tcp_try_coalesce+0x245/0x510 net/ipv4/tcp_input.c:4275 [] tcp_queue_rcv+0x127/0x6f0 net/ipv4/tcp_input.c:4539 [] tcp_send_rcvq+0x3de/0x4a0 net/ipv4/tcp_input.c:4585 [] tcp_sendmsg+0x2332/0x2ab0 net/ipv4/tcp.c:1134 [] inet_sendmsg+0x202/0x4d0 net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec net/socket.c:638 [inline] [] sock_sendmsg+0xbe/0x110 net/socket.c:648 [] ___sys_sendmsg+0x369/0x890 net/socket.c:1975 audit: type=1400 audit(1575432865.124:262): avc: denied { create } for pid=7531 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=0 [] __sys_sendmmsg+0x130/0x2e0 net/socket.c:2060 audit: type=1400 audit(1575432865.244:263): avc: denied { create } for pid=7531 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=0 [] SYSC_sendmmsg net/socket.c:2090 [inline] [] SyS_sendmmsg+0x35/0x60 net/socket.c:2085 [] entry_SYSCALL_64_fastpath+0x1e/0x9a qtaguid: iface_stat: create(lo): no inet dev qtaguid: iface_stat: create6(lo): no inet dev IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev SELinux: unrecognized netlink message: protocol=9 nlmsg_type=0 sclass=netlink_audit_socket Dead loop on virtual device ip6_vti0, fix it urgently! Dead loop on virtual device ip6_vti0, fix it urgently! Dead loop on virtual device ip6_vti0, fix it urgently! Dead loop on virtual device ip6_vti0, fix it urgently! Dead loop on virtual device ip6_vti0, fix it urgently! Dead loop on virtual device ip6_vti0, fix it urgently! SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket netlink: 188 bytes leftover after parsing attributes in process `syz-executor.0'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket audit_printk_skb: 18 callbacks suppressed audit: type=1400 audit(1575432868.644:270): avc: denied { create } for pid=7632 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=0 Dead loop on virtual device ip6tnl0, fix it urgently! audit: type=1400 audit(1575432870.354:271): avc: denied { create } for pid=7648 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=0 device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev device lo left promiscuous mode netlink: 21 bytes leftover after parsing attributes in process `syz-executor.1'. audit: type=1400 audit(1575432870.664:272): avc: denied { create } for pid=7689 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=0 audit: type=1400 audit(1575432870.724:273): avc: denied { create } for pid=7689 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=0 audit: type=1400 audit(1575432870.794:274): avc: denied { create } for pid=7689 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=0 audit: type=1400 audit(1575432870.814:275): avc: denied { create } for pid=7689 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=0 input: syz1 as /devices/virtual/input/input27 input: syz1 as /devices/virtual/input/input28 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'.