netdev - [iproute PATCH 49/51] lib/ll_map: Make sure im->name is NULL-terminated

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Date:   Sat, 12 Aug 2017 14:05:08 +0200
From:   Phil Sutter <phil@....cc>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org
Subject: [iproute PATCH 49/51] lib/ll_map: Make sure im->name is NULL-terminated

Signed-off-by: Phil Sutter <phil@....cc>
---
 lib/ll_map.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/ll_map.c b/lib/ll_map.c
index 4e4556c9ac80b..4d06eb69f138a 100644
--- a/lib/ll_map.c
+++ b/lib/ll_map.c
@@ -120,11 +120,11 @@ int ll_remember_index(const struct sockaddr_nl *who,
 		return 0;
 	}
 
-	im = malloc(sizeof(*im));
+	im = calloc(1, sizeof(*im));
 	if (im == NULL)
 		return 0;
 	im->index = ifi->ifi_index;
-	strcpy(im->name, ifname);
+	strncpy(im->name, ifname, IFNAMSIZ - 1);
 	im->type = ifi->ifi_type;
 	im->flags = ifi->ifi_flags;
 
-- 
2.13.1