This is a note to let you know that I've just added the patch titled
mac80211: fix infinite loop in ieee80211_determine_chantype
to the 3.10-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-infinite-loop-in-ieee80211_determine_chantype.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b56e4b857c5210e848bfb80e074e5756a36cd523 Mon Sep 17 00:00:00 2001
From: Chris Wright <chrisw@xxxxxxxxxxxx>
Date: Wed, 31 Jul 2013 12:12:24 -0700
Subject: mac80211: fix infinite loop in ieee80211_determine_chantype
From: Chris Wright <chrisw@xxxxxxxxxxxx>
commit b56e4b857c5210e848bfb80e074e5756a36cd523 upstream.
Commit "3d9646d mac80211: fix channel selection bug" introduced a possible
infinite loop by moving the out target above the chandef_downgrade
while loop. When we downgrade to NL80211_CHAN_WIDTH_20_NOHT, we jump
back up to re-run the while loop...indefinitely. Replace goto with
break and carry on. This may not be sufficient to connect to the AP,
but will at least keep the cpu from livelocking. Thanks to Derek Atkins
as an extra pair of debugging eyes.
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mac80211/mlme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -366,7 +366,7 @@ out:
if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) {
ret = IEEE80211_STA_DISABLE_HT |
IEEE80211_STA_DISABLE_VHT;
- goto out;
+ break;
}
ret |= chandef_downgrade(chandef);
Patches currently in stable-queue which might be from chrisw@xxxxxxxxxxxx are
queue-3.10/mac80211-continue-using-disabled-channels-while-connected.patch
queue-3.10/mac80211-fix-infinite-loop-in-ieee80211_determine_chantype.patch
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