From b7566fc363e23f0efd3fa1e1460f9421cdc0d77e Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 4 Feb 2013 15:33:44 -0600 Subject: [PATCH] cfg80211: Fix memory leak When a driver requests a specific regulatory domain after cfg80211 already has one, a struct ieee80211_regdomain is leaked. Reported-by: Larry Finger Tested-by: Larry Finger Signed-off-by: Larry Finger Signed-off-by: Johannes Berg --- net/wireless/reg.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 6ea626b30a2a..08d3da2c70ab 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -2189,10 +2189,15 @@ static int __set_regdom(const struct ieee80211_regdomain *rd) * However if a driver requested this specific regulatory * domain we keep it for its private use */ - if (lr->initiator == NL80211_REGDOM_SET_BY_DRIVER) + if (lr->initiator == NL80211_REGDOM_SET_BY_DRIVER) { + const struct ieee80211_regdomain *tmp; + + tmp = get_wiphy_regdom(request_wiphy); rcu_assign_pointer(request_wiphy->regd, rd); - else + rcu_free_regdom(tmp); + } else { kfree(rd); + } rd = NULL; -- 2.20.1