From: Ilya V. Matveychikov <matvejchikov@gmail.com>
Date: Fri, 10 Nov 2017 13:55:16 +0000 (+0300)
Subject: pdump: fix possible mbuf leak on failure
X-Git-Tag: spdx-start~847
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=ef1d0e390e056916438ad74c4fa0333c3f09aaa6

pdump: fix possible mbuf leak on failure

If pdump_pktmbuf_copy_data() fails it's possible to have segment leak
as rte_pktmbuf_free() only handles m_dup chain but not the seg just
allocated and yet not chained.

Fixes: 278f945402c5 ("pdump: add new library for packet capture")

Signed-off-by: Ilya V. Matveychikov <matvejchikov@gmail.com>
---

diff --git a/lib/librte_pdump/rte_pdump.c b/lib/librte_pdump/rte_pdump.c
index e6182d35c5..fec49b525f 100644
--- a/lib/librte_pdump/rte_pdump.c
+++ b/lib/librte_pdump/rte_pdump.c
@@ -153,6 +153,8 @@ pdump_pktmbuf_copy(struct rte_mbuf *m, struct rte_mempool *mp)
 	do {
 		nseg++;
 		if (pdump_pktmbuf_copy_data(seg, m) < 0) {
+			if (seg != m_dup)
+				rte_pktmbuf_free_seg(seg);
 			rte_pktmbuf_free(m_dup);
 			return NULL;
 		}