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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2012-09-02 21:41:04 +0800
committerJohannes Berg <johannes.berg@intel.com>2012-09-04 18:06:00 +0200
commitb4e4f47e940bc93c5b1125a4429ff53956754800 (patch)
treeb7cfe228d939d69b217c4b632abf57184e7a894f /net
parent3d2abdfdf14f4d6decc2023708211e19b096f4ca (diff)
downloadlinux-next-b4e4f47e940bc93c5b1125a4429ff53956754800.tar.gz
nl80211: fix possible memory leak nl80211_connect()
connkeys is malloced in nl80211_parse_connkeys() and should be freed in the error handling case, otherwise it will cause memory leak. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/wireless/nl80211.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 97026f3b215a..1e37dbf00cb3 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5633,8 +5633,10 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
sizeof(connect.ht_capa_mask));
if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
- if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
+ if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
+ kfree(connkeys);
return -EINVAL;
+ }
memcpy(&connect.ht_capa,
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
sizeof(connect.ht_capa));