1 files changed, 7 insertions, 0 deletions

diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 6106cb79060c..e8404212ad57 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -95,6 +95,13 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
                         }
                 }
 
+                if (alg == ALG_WEP &&
+                        key_len != LEN_WEP40 && key_len != LEN_WEP104) {
+                        ieee80211_key_free(key);
+                        err = -EINVAL;
+                        goto out_unlock;
+                }
+
                 ieee80211_key_link(key, sdata, sta);
 
                 if (set_tx_key || (!sta && !sdata->default_key && key))