netlink: 224 bytes leftover after parsing attributes in process `syz-executor.0'. BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt() CPU: 0 PID: 26105 Comm: syz-executor.3 Not tainted 5.0.0+ #97 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 tfrc_rx_hist_sample_rtt.cold+0x56/0x61 net/dccp/ccids/lib/packet_history.c:422 ccid3_hc_rx_packet_recv+0x5c6/0xeb0 net/dccp/ccids/ccid3.c:767 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline] dccp_deliver_input_to_ccids+0xee/0x280 net/dccp/input.c:180 dccp_rcv_established net/dccp/input.c:378 [inline] dccp_rcv_established+0x83/0xb0 net/dccp/input.c:368 dccp_v4_do_rcv+0x139/0x190 net/dccp/ipv4.c:659 sk_backlog_rcv include/net/sock.h:937 [inline] __sk_receive_skb+0x341/0xbf0 net/core/sock.c:527 dccp_v4_rcv+0xeaa/0x1bf1 net/dccp/ipv4.c:880 ip_protocol_deliver_rcu+0x60/0x8f0 net/ipv4/ip_input.c:208 ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:234 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_local_deliver+0x1e9/0x520 net/ipv4/ip_input.c:255 dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1e1/0x300 net/ipv4/ip_input.c:414 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_rcv+0xe8/0x3f0 net/ipv4/ip_input.c:524 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 process_backlog+0x206/0x750 net/core/dev.c:5923 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:292 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1027 do_softirq.part.0+0x11a/0x170 kernel/softirq.c:337 do_softirq kernel/softirq.c:329 [inline] __local_bh_enable_ip+0x211/0x270 kernel/softirq.c:189 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:696 [inline] ip_finish_output2+0x99c/0x1740 net/ipv4/ip_output.c:231 ip_finish_output+0x73c/0xd50 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip_output+0x21f/0x670 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:444 [inline] ip_local_out+0xc4/0x1b0 net/ipv4/ip_output.c:124 __ip_queue_xmit+0x86f/0x1bf0 net/ipv4/ip_output.c:505 ip_queue_xmit+0x5a/0x70 include/net/ip.h:198 dccp_transmit_skb+0x977/0x12c0 net/dccp/output.c:142 dccp_xmit_packet+0x1f6/0x660 net/dccp/output.c:281 dccp_write_xmit+0x181/0x1e0 net/dccp/output.c:363 dccp_sendmsg+0xa60/0xd00 net/dccp/proto.c:816 inet_sendmsg+0x147/0x5d0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x806/0x930 net/socket.c:2137 __sys_sendmsg+0x105/0x1d0 net/socket.c:2175 __do_sys_sendmsg net/socket.c:2184 [inline] __se_sys_sendmsg net/socket.c:2182 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2182 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457f29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9dffec9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f29 RDX: 0000000000000800 RSI: 00000000200002c0 RDI: 0000000000000005 RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9dffeca6d4 R13: 00000000004c5400 R14: 00000000004d9258 R15: 00000000ffffffff sctp: [Deprecated]: syz-executor.0 (pid 26199) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor.0 (pid 26182) Use of int in maxseg socket option. Use struct sctp_assoc_value instead net_ratelimit: 1 callbacks suppressed TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. audit: type=1804 audit(1552211312.295:149): pid=26354 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir139807479/syzkaller.IiJhLs/579/memory.events" dev="sda1" ino=16625 res=1 audit: type=1800 audit(1552211312.295:150): pid=26354 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="memory.events" dev="sda1" ino=16625 res=0 audit: type=1804 audit(1552211312.295:151): pid=26354 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir139807479/syzkaller.IiJhLs/579/memory.events" dev="sda1" ino=16625 res=1 audit: type=1804 audit(1552211312.345:152): pid=26354 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir139807479/syzkaller.IiJhLs/579/memory.events" dev="sda1" ino=16625 res=1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 audit: type=1800 audit(1552211312.345:153): pid=26354 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="memory.events" dev="sda1" ino=16625 res=0 audit: type=1804 audit(1552211312.345:154): pid=26366 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir139807479/syzkaller.IiJhLs/579/memory.events" dev="sda1" ino=16625 res=1 protocol 88fb is buggy, dev hsr_slave_0 audit: type=1804 audit(1552211312.375:155): pid=26349 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir356206341/syzkaller.MESBYN/568/memory.events" dev="sda1" ino=17505 res=1 protocol 88fb is buggy, dev hsr_slave_1 audit: type=1804 audit(1552211312.875:156): pid=26355 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir356206341/syzkaller.MESBYN/568/memory.events" dev="sda1" ino=17505 res=1 audit: type=1804 audit(1552211313.035:157): pid=26335 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir356206341/syzkaller.MESBYN/568/memory.events" dev="sda1" ino=17505 res=1 IPVS: set_ctl: invalid protocol: 59 224.0.0.2:20001 openvswitch: netlink: Either Ethernet header or EtherType is required. netlink: 'syz-executor.5': attribute type 1 has an invalid length. IPVS: length: 4096 != 24 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 IPVS: length: 4096 != 24 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. sctp: [Deprecated]: syz-executor.2 (pid 26694) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor.2 (pid 26700) Use of int in maxseg socket option. Use struct sctp_assoc_value instead IPVS: ftp: loaded support on port[0] = 21 net_ratelimit: 8 callbacks suppressed TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. IPVS: ftp: loaded support on port[0] = 21 RDS: rds_bind could not find a transport for ::ffff:0.0.16.0, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for ::ffff:0.0.16.0, load rds_tcp or rds_rdma?