From 94c78cb4523c246ec37959436f04e7c946f7494b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 20 May 2015 11:31:47 +0200 Subject: [PATCH] mac80211: fix memory leak My recent change here introduced a possible memory leak if the driver registers an invalid cipher schemes. This won't really happen in practice, but fix the leak nonetheless. Fixes: e3a55b5399d55 ("mac80211: validate cipher scheme PN length better") Signed-off-by: Johannes Berg --- net/mac80211/main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 3c956c5f99b2..99d27babd9f0 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -770,8 +770,10 @@ static int ieee80211_init_cipher_suites(struct ieee80211_local *local) for (r = 0; r < local->hw.n_cipher_schemes; r++) { suites[w++] = cs[r].cipher; - if (WARN_ON(cs[r].pn_len > IEEE80211_MAX_PN_LEN)) + if (WARN_ON(cs[r].pn_len > IEEE80211_MAX_PN_LEN)) { + kfree(suites); return -EINVAL; + } } } -- 2.20.1