This is a note to let you know that I've just added the patch titled
mac80211: fix IBSS presp allocation size
to the 4.11-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-4.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f1f3e9e2a50a70de908f9dfe0d870e9cdc67e042 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@xxxxxxxxx>
Date: Thu, 27 Apr 2017 13:19:04 +0200
Subject: mac80211: fix IBSS presp allocation size
From: Johannes Berg <johannes.berg@xxxxxxxxx>
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.
Fixes: abcff6ef01f9 ("mac80211: add VHT support for IBSS")
Reported-by: Shaul Triebitz <shaul.triebitz@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mac80211/ibss.c | 2 ++
1 file changed, 2 insertions(+)
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -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 johannes.berg@xxxxxxxxx are
queue-4.11/mac80211-strictly-check-mesh-address-extension-mode.patch
queue-4.11/mac80211-wpa-use-constant-time-memory-comparison-for-macs.patch
queue-4.11/mac80211-don-t-send-smps-action-frame-in-ap-mode-when-not-needed.patch
queue-4.11/mac80211-fix-ibss-presp-allocation-size.patch
queue-4.11/mac80211-don-t-look-at-the-pm-bit-of-bar-frames.patch
queue-4.11/mac80211-fix-dropped-counter-in-multiqueue-rx.patch