ccid3_first_li: X_recv==0
BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:691/ccid3_first_li()
CPU: 2 PID: 21 Comm: ksoftirqd/2 Not tainted 6.7.0-rc7-syzkaller-00041-gf016f7547aee #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
 ccid3_first_li+0x2f8/0x500 net/dccp/ccids/ccid3.c:691
 tfrc_lh_interval_add+0x610/0x8e0 net/dccp/ccids/lib/loss_interval.c:157
 tfrc_rx_handle_loss+0xe04/0x20a0 net/dccp/ccids/lib/packet_history.c:328
 ccid3_hc_rx_packet_recv+0x372/0xf50 net/dccp/ccids/ccid3.c:744
 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline]
 dccp_deliver_input_to_ccids+0xe3/0x260 net/dccp/input.c:176
 dccp_rcv_established net/dccp/input.c:374 [inline]
 dccp_rcv_established+0x106/0x160 net/dccp/input.c:364
 dccp_v4_do_rcv+0x169/0x1b0 net/dccp/ipv4.c:675
 sk_backlog_rcv include/net/sock.h:1121 [inline]
 __sk_receive_skb+0x2af/0x840 net/core/sock.c:571
 dccp_v4_rcv+0x128a/0x1980 net/dccp/ipv4.c:898
 ip_protocol_deliver_rcu+0x9f/0x480 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x2e4/0x510 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:461 [inline]
 ip_rcv_finish+0x1c4/0x2f0 net/ipv4/ip_input.c:449
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_rcv+0xaf/0xd0 net/ipv4/ip_input.c:569
 __netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5532
 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5646
 process_backlog+0x101/0x6b0 net/core/dev.c:5974
 __napi_poll.constprop.0+0xb4/0x540 net/core/dev.c:6536
 napi_poll net/core/dev.c:6605 [inline]
 net_rx_action+0x956/0xe90 net/core/dev.c:6738
 __do_softirq+0x21a/0x8de kernel/softirq.c:553
 run_ksoftirqd kernel/softirq.c:921 [inline]
 run_ksoftirqd+0x31/0x60 kernel/softirq.c:913
 smpboot_thread_fn+0x660/0xa10 kernel/smpboot.c:164
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>