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authorOla Olsson <ola1olsson@gmail.com>2015-10-29 07:04:58 +0100
committerJohannes Berg <johannes.berg@intel.com>2015-11-03 10:40:58 +0100
commit4baf6bea37247e59f1971e8009d13aeda95edba2 (patch)
treee64df44ad8496ec39bfd9461a932975c06ab7c51 /net/wireless
parent519ee6918b91abdc4bc9720deae17599a109eb40 (diff)
downloadlinux-stericsson-4baf6bea37247e59f1971e8009d13aeda95edba2.tar.gz
nl80211: Fix potential memory leak from parse_acl_data
If parse_acl_data succeeds but the subsequent parsing of smps attributes fails, there will be a memory leak due to early returns. Fix that by moving the ACL parsing later. Cc: stable@vger.kernel.org Fixes: 18998c381b19b ("cfg80211: allow requesting SMPS mode on ap start") Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d693c9d031fc..40ef5d604eb4 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3432,12 +3432,6 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
wdev->iftype))
return -EINVAL;
- if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
- params.acl = parse_acl_data(&rdev->wiphy, info);
- if (IS_ERR(params.acl))
- return PTR_ERR(params.acl);
- }
-
if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
params.smps_mode =
nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
@@ -3461,6 +3455,12 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
params.smps_mode = NL80211_SMPS_OFF;
}
+ if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
+ params.acl = parse_acl_data(&rdev->wiphy, info);
+ if (IS_ERR(params.acl))
+ return PTR_ERR(params.acl);
+ }
+
wdev_lock(wdev);
err = rdev_start_ap(rdev, dev, &params);
if (!err) {