From 4baf6bea37247e59f1971e8009d13aeda95edba2 Mon Sep 17 00:00:00 2001 From: Ola Olsson Date: Thu, 29 Oct 2015 07:04:58 +0100 Subject: 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 Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'net') 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, ¶ms); if (!err) { -- cgit v1.2.3