This is a note to let you know that I've just added the patch titled cfg80211: fix scheduled scan pointer access 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: cfg80211-fix-scheduled-scan-pointer-access.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 79845c662eeb95c9a180b9bd0d3ad848ee65b94c Mon Sep 17 00:00:00 2001 From: Johannes Berg <johannes.berg@xxxxxxxxx> Date: Mon, 21 Oct 2013 11:33:35 +0200 Subject: cfg80211: fix scheduled scan pointer access From: Johannes Berg <johannes.berg@xxxxxxxxx> commit 79845c662eeb95c9a180b9bd0d3ad848ee65b94c upstream. Since rdev->sched_scan_req is dereferenced outside the lock protecting it, this might be done at the wrong time, causing crashes. Move the dereference to where it should be - inside the RTNL locked section. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx> Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/wireless/scan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -253,10 +253,10 @@ void __cfg80211_sched_scan_results(struc rdev = container_of(wk, struct cfg80211_registered_device, sched_scan_results_wk); - request = rdev->sched_scan_req; - mutex_lock(&rdev->sched_scan_mtx); + request = rdev->sched_scan_req; + /* we don't have sched_scan_req anymore if the scan is stopping */ if (request) { if (request->flags & NL80211_SCAN_FLAG_FLUSH) { Patches currently in stable-queue which might be from johannes.berg@xxxxxxxxx are queue-3.10/cfg80211-fix-scheduled-scan-pointer-access.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html