Index: sys/netinet/tcp_subr.c
===================================================================
--- sys/netinet/tcp_subr.c
+++ sys/netinet/tcp_subr.c
@@ -1604,6 +1604,11 @@
 			if ((tcpb = intotcpcb(inpb)) != NULL) {
 				tcp_reass_flush(tcpb);
 				tcp_clean_sackreport(tcpb);
+#ifdef TCPPCAP
+				/* Free the TCP PCAP queues. */
+				tcp_pcap_drain(&(tcpb->t_inpkts));
+				tcp_pcap_drain(&(tcpb->t_outpkts));
+#endif
 			}
 			INP_WUNLOCK(inpb);
 		}