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: 0 PID: 14 Comm: ksoftirqd/0 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 tfrc_rx_hist_sample_rtt+0x318/0x3ec net/dccp/ccids/lib/packet_history.c:414
 ccid3_hc_rx_packet_recv+0x51c/0xb24 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+0x1ac/0x2d8 net/dccp/input.c:374
 dccp_v4_do_rcv+0xa8/0x184 net/dccp/ipv4.c:672
 sk_backlog_rcv include/net/sock.h:1061 [inline]
 __sk_receive_skb+0x3c0/0x8bc net/core/sock.c:528
 dccp_v4_rcv+0xe80/0x143c net/dccp/ipv4.c:895
 ip_protocol_deliver_rcu+0x370/0x778 net/ipv4/ip_input.c:204
 ip_local_deliver_finish+0x1b8/0x30c net/ipv4/ip_input.c:231
 NF_HOOK+0x2c0/0x354 include/linux/netfilter.h:302
 ip_local_deliver+0x120/0x194 net/ipv4/ip_input.c:252
 dst_input include/net/dst.h:462 [inline]
 ip_rcv_finish+0x228/0x260 net/ipv4/ip_input.c:447
 NF_HOOK+0x2c0/0x354 include/linux/netfilter.h:302
 ip_rcv+0x7c/0x9c net/ipv4/ip_input.c:566
 __netif_receive_skb_one_core net/core/dev.c:5524 [inline]
 __netif_receive_skb+0xcc/0x2ac net/core/dev.c:5638
 process_backlog+0x3c8/0x744 net/core/dev.c:6515
 __napi_poll+0xb4/0x5dc net/core/dev.c:7074
 napi_poll net/core/dev.c:7141 [inline]
 net_rx_action+0x468/0xa08 net/core/dev.c:7231
 handle_softirqs+0x344/0xbf0 kernel/softirq.c:558
 run_ksoftirqd+0x7c/0x2a0 kernel/softirq.c:925
 smpboot_thread_fn+0x4b0/0x920 kernel/smpboot.c:164
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870