BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt()
CPU: 3 PID: 5223 Comm: syz-executor176 Not tainted 6.9.0-rc5-syzkaller-00355-g2c8159388952 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:114
 tfrc_rx_hist_sample_rtt+0x3e1/0x4a0 net/dccp/ccids/lib/packet_history.c:414
 ccid3_hc_rx_packet_recv+0x443/0xf50 net/dccp/ccids/ccid3.c:760
 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline]
 dccp_deliver_input_to_ccids+0xe3/0x270 net/dccp/input.c:176
 dccp_rcv_established net/dccp/input.c:374 [inline]
 dccp_rcv_established+0x10a/0x160 net/dccp/input.c:364
 dccp_v4_do_rcv+0x16d/0x1b0 net/dccp/ipv4.c:675
 sk_backlog_rcv include/net/sock.h:1106 [inline]
 __sk_receive_skb+0x7be/0x8b0 net/core/sock.c:569
 dccp_v4_rcv+0x124f/0x18d0 net/dccp/ipv4.c:898
 ip_protocol_deliver_rcu+0x45e/0x4e0 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x316/0x570 net/ipv4/ip_input.c:233
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_local_deliver+0x18e/0x1f0 net/ipv4/ip_input.c:254
 dst_input include/net/dst.h:460 [inline]
 ip_rcv_finish net/ipv4/ip_input.c:449 [inline]
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_rcv+0x2c5/0x5d0 net/ipv4/ip_input.c:569
 __netif_receive_skb_one_core+0x199/0x1e0 net/core/dev.c:5544
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:5658
 process_backlog+0x12f/0x6f0 net/core/dev.c:5987
 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6638
 napi_poll net/core/dev.c:6707 [inline]
 net_rx_action+0x9ad/0xf10 net/core/dev.c:6822
 __do_softirq+0x218/0x922 kernel/softirq.c:554
 do_softirq kernel/softirq.c:455 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:442
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:851 [inline]
 __dev_queue_xmit+0x877/0x40f0 net/core/dev.c:4368
 dev_queue_xmit include/linux/netdevice.h:3091 [inline]
 neigh_hh_output include/net/neighbour.h:526 [inline]
 neigh_output include/net/neighbour.h:540 [inline]
 ip_finish_output2+0x16fc/0x25e0 net/ipv4/ip_output.c:235
 __ip_finish_output net/ipv4/ip_output.c:313 [inline]
 __ip_finish_output+0x49e/0x950 net/ipv4/ip_output.c:295
 ip_finish_output+0x31/0x310 net/ipv4/ip_output.c:323
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip_output+0x13b/0x2a0 net/ipv4/ip_output.c:433
 dst_output include/net/dst.h:450 [inline]
 ip_local_out+0x33e/0x4a0 net/ipv4/ip_output.c:129
 __ip_queue_xmit+0x747/0x1940 net/ipv4/ip_output.c:535
 dccp_transmit_skb+0xd2a/0x1620 net/dccp/output.c:138
 dccp_xmit_packet+0x1f8/0x710 net/dccp/output.c:281
 dccp_write_xmit+0x16f/0x1d0 net/dccp/output.c:366
 dccp_sendmsg+0x9ae/0xd10 net/dccp/proto.c:801
 inet_sendmsg+0x119/0x140 net/ipv4/af_inet.c:851
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0xa09/0xc90 net/socket.c:2584
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2638
 __sys_sendmsg+0x117/0x1f0 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e1775a609
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 1a 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:00007f3e17711238 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3e177e5408 RCX: 00007f3e1775a609
RDX: 000000000c004004 RSI: 0000000020004340 RDI: 0000000000000005
RBP: 00007f3e177e5400 R08: 00007f3e177116c0 R09: 00007f3e177116c0
R10: 00007f3e177116c0 R11: 0000000000000246 R12: 00007f3e177b1504
R13: 0000000000000011 R14: 00007ffec0a282d0 R15: 00007ffec0a283b8
 </TASK>