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authorJohannes Berg <johannes.berg@intel.com>2014-09-10 13:39:56 +0300
committerJohannes Berg <johannes.berg@intel.com>2014-09-11 12:07:28 +0200
commit538c9eb8b3fd33d3a0722b2c04ec4f574eaa6e9f (patch)
tree738b71b941b78e7708c158eb79b7fabeddf480f4 /net/wireless/core.c
parent29c3f9c3996abea060fa6e0b9e6a30d3f0cc828c (diff)
cfg80211: clear wext keys when freeing and removing them
When freeing the keys stored for wireless extensions, clear the memory to avoid having the key material stick around in memory "forever". Similarly, when userspace overwrites a key, actually clear it instead of just setting the key length to zero. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/core.c')
-rw-r--r--net/wireless/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 9698fe709251..55ec9be9feb7 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1007,7 +1007,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
rdev->devlist_generation++;
cfg80211_mlme_purge_registrations(wdev);
#ifdef CONFIG_CFG80211_WEXT
- kfree(wdev->wext.keys);
+ kzfree(wdev->wext.keys);
#endif
}
/*