Patch "mac80211: fix IBSS presp allocation size" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

mac80211: fix IBSS presp allocation size

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mac80211-fix-ibss-presp-allocation-size.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Johannes Berg <[email protected]>
Date: Thu, 27 Apr 2017 13:19:04 +0200
Subject: mac80211: fix IBSS presp allocation size

From: Johannes Berg <[email protected]>

commit f1f3e9e2a50a70de908f9dfe0d870e9cdc67e042 upstream.

When VHT IBSS support was added, the size of the extra elements wasn't considered in ieee80211_ibss_build_presp(), which makes it possible that it would overrun the allocated buffer. Fix it by allocating the necessary space.

---
 net/mac80211/ibss.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -66,6 +66,8 @@ ieee80211_ibss_build_presp(struct ieee80
 		    2 + (IEEE80211_MAX_SUPP_RATES - 8) +
 		    2 + sizeof(struct ieee80211_ht_cap) +
 		    2 + sizeof(struct ieee80211_ht_operation) +
+		    2 + sizeof(struct ieee80211_vht_cap) +
+		    2 + sizeof(struct ieee80211_vht_operation) +
 		    ifibss->ie_len;
 	presp = kzalloc(sizeof(*presp) + frame_len, GFP_KERNEL);
 	if (!presp)

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/mac80211-wpa-use-constant-time-memory-comparison-for-macs.patch queue-4.4/mac80211-fix-ibss-presp-allocation-size.patch queue-4.4/mac80211-fix-csa-in-ibss-mode.patch queue-4.4/mac80211-don-t-look-at-the-pm-bit-of-bar-frames.patch