This is a note to let you know that I've just added the patch titled
wifi: cfg80211: fix locking in sched scan stop work
to the 5.15-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:
wifi-cfg80211-fix-locking-in-sched-scan-stop-work.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit df303a1034840bf9579201394a769ecea1115f98
Author: Johannes Berg <johannes.berg@xxxxxxxxx>
Date: Tue Jun 6 14:34:47 2023 +0200
wifi: cfg80211: fix locking in sched scan stop work
[ Upstream commit 3e54ed8247c94c8bdf370bd872bd9dfe72b1b12b ]
This should use wiphy_lock() now instead of acquiring the
RTNL, since cfg80211_stop_sched_scan_req() now needs that.
Fixes: a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 441136646f89a..d10686f4bf153 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -368,12 +368,12 @@ static void cfg80211_sched_scan_stop_wk(struct work_struct *work)
rdev = container_of(work, struct cfg80211_registered_device,
sched_scan_stop_wk);
- rtnl_lock();
+ wiphy_lock(&rdev->wiphy);
list_for_each_entry_safe(req, tmp, &rdev->sched_scan_req_list, list) {
if (req->nl_owner_dead)
cfg80211_stop_sched_scan_req(rdev, req, false);
}
- rtnl_unlock();
+ wiphy_unlock(&rdev->wiphy);
}
static void cfg80211_propagate_radar_detect_wk(struct work_struct *work)
