From 700e893c34fcff18ef37cebbf5e54d7ddc22058e Mon Sep 17 00:00:00 2001
From: Matt Macy <mmacy@FreeBSD.org>
Date: Tue, 12 Jun 2018 23:26:25 +0000
Subject: [PATCH] Defer inpcbport free in in_pcbremlists as well

---
 sys/netinet/in_pcb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/netinet/in_pcb.c b/sys/netinet/in_pcb.c
index c7fe6f158f54..0cf2ebf1edc2 100644
--- a/sys/netinet/in_pcb.c
+++ b/sys/netinet/in_pcb.c
@@ -2680,7 +2680,7 @@ in_pcbremlists(struct inpcb *inp)
 		CK_LIST_REMOVE(inp, inp_portlist);
 		if (CK_LIST_FIRST(&phd->phd_pcblist) == NULL) {
 			CK_LIST_REMOVE(phd, phd_hash);
-			free(phd, M_PCB);
+			epoch_call(net_epoch_preempt, &phd->phd_epoch_ctx, inpcbport_free);
 		}
 		INP_HASH_WUNLOCK(pcbinfo);
 		inp->inp_flags &= ~INP_INHASHLIST;