kernel msg: ebtables bug: please report to author: counter_offset != totalcnt audit: type=1400 audit(1521807566.131:79): avc: denied { connect } for pid=20973 comm="syz-executor6" 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=1 ============================= WARNING: suspicious RCU usage 4.16.0-rc4+ #278 Not tainted ----------------------------- ./include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor1/20980: #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000c7c1a012>] lock_sock include/net/sock.h:1464 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000c7c1a012>] sock_setsockopt+0x16b/0x1ad0 net/core/sock.c:717 stack backtrace: CPU: 0 PID: 20980 Comm: syz-executor1 Not tainted 4.16.0-rc4+ #278 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x24d lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592 ireq_opt_deref include/net/inet_sock.h:135 [inline] inet_csk_route_req+0x824/0xca0 net/ipv4/inet_connection_sock.c:543 dccp_v4_send_response+0xa7/0x650 net/dccp/ipv4.c:485 dccp_v4_conn_request+0x9ee/0x11b0 net/dccp/ipv4.c:633 dccp_v6_conn_request+0xd30/0x1410 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x574/0x1620 net/dccp/input.c:612 dccp_v4_do_rcv+0xf1/0x160 net/dccp/ipv4.c:682 dccp_v6_do_rcv+0x86a/0xa70 net/dccp/ipv6.c:578 sk_backlog_rcv include/net/sock.h:909 [inline] __release_sock+0x124/0x360 net/core/sock.c:2335 release_sock+0xa4/0x2a0 net/core/sock.c:2850 sock_setsockopt+0x528/0x1ad0 net/core/sock.c:1070 SYSC_setsockopt net/socket.c:1846 [inline] SyS_setsockopt+0x2ff/0x360 net/socket.c:1829 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x454239 RSP: 002b:00007fca05093c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fca050946d4 RCX: 0000000000454239 RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004f7 R14: 00000000006f87c8 R15: 0000000000000000 ============================= WARNING: suspicious RCU usage 4.16.0-rc4+ #278 Not tainted ----------------------------- ./include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor1/20980: #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000c7c1a012>] lock_sock include/net/sock.h:1464 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000c7c1a012>] sock_setsockopt+0x16b/0x1ad0 net/core/sock.c:717 stack backtrace: CPU: 0 PID: 20980 Comm: syz-executor1 Not tainted 4.16.0-rc4+ #278 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x24d lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592 ireq_opt_deref include/net/inet_sock.h:135 [inline] dccp_v4_send_response+0x4b6/0x650 net/dccp/ipv4.c:496 dccp_v4_conn_request+0x9ee/0x11b0 net/dccp/ipv4.c:633 dccp_v6_conn_request+0xd30/0x1410 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x574/0x1620 net/dccp/input.c:612 dccp_v4_do_rcv+0xf1/0x160 net/dccp/ipv4.c:682 dccp_v6_do_rcv+0x86a/0xa70 net/dccp/ipv6.c:578 sk_backlog_rcv include/net/sock.h:909 [inline] __release_sock+0x124/0x360 net/core/sock.c:2335 release_sock+0xa4/0x2a0 net/core/sock.c:2850 sock_setsockopt+0x528/0x1ad0 net/core/sock.c:1070 SYSC_setsockopt net/socket.c:1846 [inline] SyS_setsockopt+0x2ff/0x360 net/socket.c:1829 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x454239 RSP: 002b:00007fca05093c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fca050946d4 RCX: 0000000000454239 RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004f7 R14: 00000000006f87c8 R15: 0000000000000000 netlink: 'syz-executor2': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 'syz-executor2': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 'syz-executor2': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 'syz-executor2': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 'syz-executor2': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. xt_AUDIT: Audit type out of range (valid range: 0..2) can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. kernel msg: ebtables bug: please report to author: EBT_ENTRY_OR_ENTRIES shouldn't be set in distinguisher SELinux: unrecognized netlink message: protocol=0 nlmsg_type=19232 sclass=netlink_route_socket pig=21397 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=63560 sclass=netlink_route_socket pig=21403 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=63560 sclass=netlink_route_socket pig=21403 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=26678 sclass=netlink_route_socket pig=21473 comm=syz-executor2 netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=26678 sclass=netlink_route_socket pig=21473 comm=syz-executor2 netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor1'. sctp: [Deprecated]: syz-executor5 (pid 21531) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor5 (pid 21545) Use of int in maxseg socket option. Use struct sctp_assoc_value instead SELinux: unrecognized netlink message: protocol=0 nlmsg_type=39632 sclass=netlink_route_socket pig=21571 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=39632 sclass=netlink_route_socket pig=21583 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=6090 sclass=netlink_route_socket pig=21690 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=21695 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=21695 comm=syz-executor2 netlink: 'syz-executor3': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 'syz-executor3': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 'syz-executor3': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 'syz-executor3': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 'syz-executor3': attribute type 29 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. RDS: rds_bind could not find a transport for 224.0.0.1, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 0.0.0.63, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 0.0.0.63, load rds_tcp or rds_rdma? openvswitch: netlink: Flow get message rejected, Key attribute missing. openvswitch: netlink: Flow get message rejected, Key attribute missing. kernel msg: ebtables bug: please report to author: EBT_ENTRY_OR_ENTRIES shouldn't be set in distinguisher kernel msg: ebtables bug: please report to author: EBT_ENTRY_OR_ENTRIES shouldn't be set in distinguisher rdma_op 00000000d0f3847f conn xmit_rdma (null) sock: sock_set_timeout: `syz-executor2' (pid 22498) tries to set negative timeout sock: sock_set_timeout: `syz-executor2' (pid 22498) tries to set negative timeout kernel msg: ebtables bug: please report to author: Total nentries is wrong kernel msg: ebtables bug: please report to author: Total nentries is wrong kernel msg: ebtables bug: please report to author: counter_offset != totalcnt kernel msg: ebtables bug: please report to author: counter_offset != totalcnt kernel msg: ebtables bug: please report to author: bad policy validate_nla: 16 callbacks suppressed netlink: 'syz-executor4': attribute type 1 has an invalid length. xt_ipvs: protocol family 7 not supported dccp_close: ABORT with 1 bytes unread kernel msg: ebtables bug: please report to author: bad policy xt_ipvs: protocol family 7 not supported netlink: 'syz-executor4': attribute type 1 has an invalid length. sctp: [Deprecated]: syz-executor6 (pid 23023) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead device lo entered promiscuous mode device lo left promiscuous mode sctp: [Deprecated]: syz-executor6 (pid 23023) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor3 (pid 23043) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead IPVS: Unknown mcast interface: nla_parse: 27 callbacks suppressed netlink: 12 bytes leftover after parsing attributes in process `syz-executor6'. kernel msg: ebtables bug: please report to author: Wrong len argument netlink: 12 bytes leftover after parsing attributes in process `syz-executor6'. kernel msg: ebtables bug: please report to author: Wrong len argument netlink: 'syz-executor5': attribute type 7 has an invalid length. netlink: 'syz-executor5': attribute type 7 has an invalid length. sctp: [Deprecated]: syz-executor0 (pid 23416) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead kernel msg: ebtables bug: please report to author: Wrong len argument audit: type=1400 audit(1521807575.502:80): avc: denied { map } for pid=23724 comm="syz-executor6" path="socket:[56728]" dev="sockfs" ino=56728 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_route_socket permissive=1 audit: type=1400 audit(1521807575.757:81): avc: denied { accept } for pid=23801 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_connector_socket permissive=1 netlink: 80 bytes leftover after parsing attributes in process `syz-executor2'. selinux_nlmsg_perm: 9 callbacks suppressed SELinux: unrecognized netlink message: protocol=6 nlmsg_type=17861 sclass=netlink_xfrm_socket pig=23900 comm=syz-executor5