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Date: Tue, 22 Nov 2011 16:23:18 -0800 From: Greg KH <gregkh@...e.de> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Johannes Berg <johannes.berg@...el.com>, "John W. Linville" <linville@...driver.com> Subject: [11/53] mac80211: fix bug in ieee80211_build_probe_req 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johannes Berg <johannes.berg@...el.com> commit 5b2bbf75a24d6b06afff6de0eb4819413fd81971 upstream. ieee80211_probereq_get() can return NULL in which case we should clean up & return NULL in ieee80211_build_probe_req() as well. Signed-off-by: Johannes Berg <johannes.berg@...el.com> Signed-off-by: John W. Linville <linville@...driver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> --- net/mac80211/util.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1047,6 +1047,8 @@ 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; @@ -1055,6 +1057,8 @@ struct sk_buff *ieee80211_build_probe_re } IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + + out: kfree(buf); return skb; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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