From 4debb6a3a027498aa657fcb79007d9936fc8b771 Mon Sep 17 00:00:00 2001
From: Kristof Provost <kp@FreeBSD.org>
Date: Wed, 30 Jun 2021 13:02:35 +0200
Subject: [PATCH] libpfctl: memory leak fix

We must remember to free the nvlist we create from the kernel's response
to DIOCGETSTATESNV, on every iteration.

Reviewed by:	donner
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30957

(cherry picked from commit 0e9f1892ec739d7fbd854af699507167a0a5dde2)
---
 lib/libpfctl/libpfctl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/libpfctl/libpfctl.c b/lib/libpfctl/libpfctl.c
index 524e2472238..bbb53edf8bc 100644
--- a/lib/libpfctl/libpfctl.c
+++ b/lib/libpfctl/libpfctl.c
@@ -727,6 +727,7 @@ pfctl_get_states(int dev, struct pfctl_states *states)
 			goto out;
 		}
 
+		nvlist_destroy(nvl);
 		nvl = nvlist_unpack(nv.data, nv.len, 0);
 		if (nvl == NULL) {
 			error = EIO;