From: Johannes Berg <johannes.berg@xxxxxxxxx>
ieee80211_probereq_get() can return NULL in
which case we should clean up & return NULL
in ieee80211_build_probe_req() as well.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/util.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/net/mac80211/util.c 2011-11-08 09:24:02.000000000 +0100
+++ b/net/mac80211/util.c 2011-11-08 12:50:12.000000000 +0100
@@ -880,6 +880,8 @@ struct sk_buff *ieee80211_build_probe_re
skb = ieee80211_probereq_get(&local->hw, &sdata->vif,
ssid, ssid_len,
buf, buf_len);
+ if (!skb)
+ goto out;
if (dst) {
mgmt = (struct ieee80211_mgmt *) skb->data;
@@ -888,6 +890,8 @@ struct sk_buff *ieee80211_build_probe_re
}
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+
+ out:
kfree(buf);
return skb;
--
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