BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:425/tfrc_rx_hist_sample_rtt() CPU: 0 PID: 5982 Comm: udevd Not tainted 4.16.0+ #293 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+0x1a7/0x27d lib/dump_stack.c:53 tfrc_rx_hist_sample_rtt+0x407/0x4d0 net/dccp/ccids/lib/packet_history.c:422 ccid3_hc_rx_packet_recv+0x696/0xeb3 net/dccp/ccids/ccid3.c:765 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline] dccp_deliver_input_to_ccids+0xd9/0x250 net/dccp/input.c:180 dccp_rcv_established+0x88/0xb0 net/dccp/input.c:378 dccp_v4_do_rcv+0x135/0x160 net/dccp/ipv4.c:653 sk_backlog_rcv include/net/sock.h:909 [inline] __sk_receive_skb+0x2ec/0xc00 net/core/sock.c:513 dccp_close: ABORT with 1 bytes unread dccp_v4_rcv+0xf6c/0x1cb0 net/dccp/ipv4.c:874 ip_local_deliver_finish+0x2ed/0xbf0 net/ipv4/ip_input.c:215 NF_HOOK include/linux/netfilter.h:288 [inline] ip_local_deliver+0x1ce/0x6e0 net/ipv4/ip_input.c:256 dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x719/0x2030 net/ipv4/ip_input.c:396 NF_HOOK include/linux/netfilter.h:288 [inline] ip_rcv+0xb7f/0x1820 net/ipv4/ip_input.c:492 __netif_receive_skb_core+0x1a52/0x3480 net/core/dev.c:4592 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4657 process_backlog+0x203/0x740 net/core/dev.c:5337 napi_poll net/core/dev.c:5735 [inline] net_rx_action+0x788/0x1910 net/core/dev.c:5801 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 invoke_softirq kernel/softirq.c:365 [inline] irq_exit+0x1cc/0x200 kernel/softirq.c:405 exiting_irq arch/x86/include/asm/apic.h:525 [inline] smp_apic_timer_interrupt+0x16b/0x700 arch/x86/kernel/apic/apic.c:1052 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:862 RIP: 0033:0x40eab8 RSP: 002b:00007ffcbba78df0 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff12 RAX: 0000000000000001 RBX: 0000000001a972f4 RCX: 0000000000000064 RDX: 0000000001a972d0 RSI: 0000000001a80200 RDI: 0000000001a9cdfb RBP: 0000000001a7d110 R08: 000000000000ffff R09: 0000000000000000 R10: 00007f188d62af80 R11: 00007f188d66cc10 R12: 0000000001a83420 R13: 0000000000625500 R14: 0000000001a7d250 R15: 0000000001a83420 IPVS: set_ctl: invalid protocol: 16 255.255.255.255:0 rr IPVS: set_ctl: invalid protocol: 16 255.255.255.255:0 rr dccp_close: ABORT with 1 bytes unread dccp_close: ABORT with 1 bytes unread dccp_close: ABORT with 1 bytes unread kernel msg: ebtables bug: please report to author: bad policy kernel msg: ebtables bug: please report to author: entries_size too small kernel msg: ebtables bug: please report to author: bad policy kernel msg: ebtables bug: please report to author: entries_size too small netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. device bridge0 entered promiscuous mode dccp_close: ABORT with 1957 bytes unread netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. device bridge0 left promiscuous mode kernel msg: ebtables bug: please report to author: counter_offset != totalcnt sctp: [Deprecated]: syz-executor1 (pid 6657) Use of int in maxseg socket option. Use struct sctp_assoc_value instead IPVS: ftp: loaded support on port[0] = 21 kernel msg: ebtables bug: please report to author: counter_offset != totalcnt sctp: [Deprecated]: syz-executor1 (pid 6699) Use of int in maxseg socket option. Use struct sctp_assoc_value instead IPVS: set_ctl: invalid protocol: 255 255.255.255.255:0 wrréáÿ IPVS: set_ctl: invalid protocol: 255 255.255.255.255:0 wrréáÿ IPVS: Unknown mcast interface: irlan0 netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 'syz-executor2': attribute type 9 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 100 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 100 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'. can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. do_dccp_setsockopt: sockopt(CHANGE_L/R) is deprecated: fix your app do_dccp_setsockopt: sockopt(CHANGE_L/R) is deprecated: fix your app netlink: 92 bytes leftover after parsing attributes in process `syz-executor6'. sctp: [Deprecated]: syz-executor3 (pid 7273) Use of int in max_burst socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor3 (pid 7282) Use of int in max_burst socket option. Use struct sctp_assoc_value instead