BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt()
CPU: 1 PID: 5029 Comm: syz-executor308 Not tainted 6.5.0-syzkaller-11704-g3f86ed6ec0b3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 tfrc_rx_hist_sample_rtt+0x393/0x4b0 net/dccp/ccids/lib/packet_history.c:414
 ccid3_hc_rx_packet_recv+0x6ae/0xf50 net/dccp/ccids/ccid3.c:760
 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline]
 dccp_deliver_input_to_ccids net/dccp/input.c:176 [inline]
 dccp_rcv_established+0x1b7/0x310 net/dccp/input.c:374
 dccp_v4_do_rcv+0xff/0x1e0 net/dccp/ipv4.c:680
 sk_backlog_rcv include/net/sock.h:1115 [inline]
 __sk_receive_skb+0x41e/0x9d0 net/core/sock.c:571
 ip_protocol_deliver_rcu+0x208/0x3f0 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x28e/0x4c0 net/ipv4/ip_input.c:233
 NF_HOOK+0x368/0x410 include/linux/netfilter.h:304
 NF_HOOK+0x368/0x410 include/linux/netfilter.h:304
 __netif_receive_skb_one_core net/core/dev.c:5523 [inline]
 __netif_receive_skb+0x1ca/0x530 net/core/dev.c:5637
 process_backlog+0x34b/0x710 net/core/dev.c:5965
 __napi_poll+0xc7/0x470 net/core/dev.c:6527
 napi_poll net/core/dev.c:6594 [inline]
 net_rx_action+0x78b/0x1010 net/core/dev.c:6727
 __do_softirq+0x2ab/0x908 kernel/softirq.c:553
 do_softirq+0x11b/0x1e0 kernel/softirq.c:454
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x1b5/0x1f0 kernel/softirq.c:381
 rcu_read_unlock_bh include/linux/rcupdate.h:819 [inline]
 __dev_queue_xmit+0x15d8/0x3a60 net/core/dev.c:4367
 dev_queue_xmit include/linux/netdevice.h:3082 [inline]
 neigh_hh_output include/net/neighbour.h:526 [inline]
 neigh_output include/net/neighbour.h:540 [inline]
 ip_finish_output2+0xcd3/0x1280 net/ipv4/ip_output.c:230
 dst_output include/net/dst.h:458 [inline]
 ip_local_out net/ipv4/ip_output.c:127 [inline]
 __ip_queue_xmit+0x125c/0x1bd0 net/ipv4/ip_output.c:534
 dccp_transmit_skb+0xdbd/0x1420 net/dccp/output.c:138
 dccp_xmit_packet+0x2ef/0x530 net/dccp/output.c:281
 dccp_write_xmit+0x135/0x220 net/dccp/output.c:366
 dccp_sendmsg+0x759/0xb60 net/dccp/proto.c:801
 sock_sendmsg_nosec net/socket.c:730 [inline]
 sock_sendmsg net/socket.c:753 [inline]
 ____sys_sendmsg+0x592/0x890 net/socket.c:2540
 ___sys_sendmsg net/socket.c:2594 [inline]
 __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2623
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc9074fb3a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 1c 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffefacc46f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc9074fb3a9
RDX: 000000000c004004 RSI: 0000000020004340 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007ffefacc48d0 R09: 00007ffefacc48d0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>