diff options
| author | Michal Kazior <michal.kazior@tieto.com> | 2014-01-29 07:56:18 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-04 21:58:09 +0100 |
| commit | 97518af1260553d2cad71b37a76b597360519e8a (patch) | |
| tree | 659dff2c80ead09ddb4c72a7bc67906d0a0e9a61 | |
| parent | faf046e7231bf008715bbffe5cca2ed3aa31be1b (diff) | |
| download | linux-97518af1260553d2cad71b37a76b597360519e8a.tar.gz | |
mac80211: fix possible memory leak on AP CSA failure
If CSA for AP interface failed and the interface was not stopped afterwards another CSA request would leak sdata->u.ap.next_beacon. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Reviewed-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/mac80211/cfg.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index f215ad48985a..b98dc8ce8e25 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3018,11 +3018,12 @@ static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) switch (sdata->vif.type) { case NL80211_IFTYPE_AP: err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon); + kfree(sdata->u.ap.next_beacon); + sdata->u.ap.next_beacon = NULL; + if (err < 0) return; changed |= err; - kfree(sdata->u.ap.next_beacon); - sdata->u.ap.next_beacon = NULL; break; case NL80211_IFTYPE_ADHOC: err = ieee80211_ibss_finish_csa(sdata); |