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| author | Johannes Berg <johannes.berg@intel.com> | 2015-05-20 11:31:47 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-05-20 11:37:38 +0200 |
| commit | 94c78cb4523c246ec37959436f04e7c946f7494b (patch) | |
| tree | 7ecdc49abe145736cb9123e73c3756f1b6d4bfb3 /net | |
| parent | 658358cec93a7130615cfc1d6843ab07e49625e6 (diff) | |
| download | linux-stable-94c78cb4523c246ec37959436f04e7c946f7494b.tar.gz linux-stable-94c78cb4523c246ec37959436f04e7c946f7494b.tar.bz2 linux-stable-94c78cb4523c246ec37959436f04e7c946f7494b.zip | |
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 <johannes.berg@intel.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/main.c | 4 |
1 files changed, 3 insertions, 1 deletions
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; + } } } |