mac80211: clear key material when freeing keys



When freeing the key, clear the memory to avoid having the
key material stick around in memory "forever".

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent b47f610b

net/mac80211/key.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -422,7 +422,7 @@ static void ieee80211_key_free_common(struct ieee80211_key *key)
		ieee80211_aes_key_free(key->u.ccmp.tfm);
		if (key->conf.cipher == WLAN_CIPHER_SUITE_AES_CMAC)
		ieee80211_aes_cmac_key_free(key->u.aes_cmac.tfm);
		kfree(key);
		kzfree(key);
		}

		static void __ieee80211_key_destroy(struct ieee80211_key *key,