From 04d432fdc0c15f2da76dac4a9a5caf1aeb051ef0 Mon Sep 17 00:00:00 2001
From: tuexen <tuexen@FreeBSD.org>
Date: Sun, 30 Sep 2018 21:54:02 +0000
Subject: [PATCH] Plug mbuf leak in the SCTP input path in an error case.

Approved by:            re (kib@)
MFC after:              1 week
CID:			749312
---
 sys/netinet/sctp_asconf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/netinet/sctp_asconf.c b/sys/netinet/sctp_asconf.c
index 26b1ba6f508b..611280f1ae42 100644
--- a/sys/netinet/sctp_asconf.c
+++ b/sys/netinet/sctp_asconf.c
@@ -670,6 +670,7 @@ sctp_handle_asconf(struct mbuf *m, unsigned int offset,
 		SCTPDBG(SCTP_DEBUG_ASCONF1,
 		    "handle_asconf: couldn't get lookup addr!\n");
 		/* respond with a missing/invalid mandatory parameter error */
+		sctp_m_freem(m_ack);
 		return;
 	}
 	/* param_length is already validated in process_control... */