netlink: 'syz-executor.5': attribute type 16 has an invalid length. 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: 1 PID: 23215 Comm: syz-executor.1 Not tainted 5.0.0-rc7+ #88 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+0x60/0x8e0 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+0x1db/0x2f0 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:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x806/0x930 net/socket.c:2136 __sys_sendmsg+0x105/0x1d0 net/socket.c:2174 __do_sys_sendmsg net/socket.c:2183 [inline] __se_sys_sendmsg net/socket.c:2181 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2181 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 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:00007f10f7aaac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e29 RDX: 0000000000000004 RSI: 00000000200002c0 RDI: 0000000000000006 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f10f7aab6d4 R13: 00000000004c534c R14: 00000000004d91a0 R15: 00000000ffffffff dccp_close: ABORT with 1372 bytes unread protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. IPVS: ftp: loaded support on port[0] = 21 sctp: [Deprecated]: syz-executor.3 (pid 23465) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead IPVS: ftp: loaded support on port[0] = 21 device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode IPVS: Unknown mcast interface: bcsh0 netlink: 'syz-executor.2': attribute type 1 has an invalid length. netlink: 'syz-executor.2': attribute type 1 has an invalid length. protocol 88fb is buggy, dev hsr_slave_0 IPVS: Unknown mcast interface: bcsh0 netlink: 48 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 48 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.1': attribute type 3 has an invalid length. netlink: 10 bytes leftover after parsing attributes in process `syz-executor.1'.