netdev - [iproute PATCH v2 2/5] ifstat: Fix memleak in error case

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Date:   Thu, 17 Aug 2017 19:09:28 +0200
From:   Phil Sutter <phil@....cc>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org
Subject: [iproute PATCH v2 2/5] ifstat: Fix memleak in error case

Signed-off-by: Phil Sutter <phil@....cc>
---
 misc/ifstat.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/misc/ifstat.c b/misc/ifstat.c
index a853ee6d7e3b3..8fa354265a9a1 100644
--- a/misc/ifstat.c
+++ b/misc/ifstat.c
@@ -143,8 +143,10 @@ static int get_nlmsg_extended(const struct sockaddr_nl *who,
 		struct rtattr *attr;
 
 		attr = parse_rtattr_one_nested(sub_type, tb[filter_type]);
-		if (attr == NULL)
+		if (attr == NULL) {
+			free(n);
 			return 0;
+		}
 		memcpy(&n->val, RTA_DATA(attr), sizeof(n->val));
 	}
 	memset(&n->rate, 0, sizeof(n->rate));
-- 
2.13.1