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wifi: cfg80211: lock wiphy mutex for rfkill poll

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[ Upstream commit 8e2f6f2366219b3304b227bdd2f04b64c92e3e12 ]

We want to guarantee the mutex is held for pretty much
all operations, so ensure that here as well.

Reported-by: syzbot+7e59a5bfc7a897247e18@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg
2023-11-08 13:41:25 +01:00
committed by Greg Kroah-Hartman
parent 91edb0cd1b
commit dd9465b108
1 changed files with 2 additions and 0 deletions
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2
net/wireless/core.c
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@@ -216,7 +216,9 @@ static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
{ {
struct cfg80211_registered_device *rdev = data; struct cfg80211_registered_device *rdev = data;
wiphy_lock(&rdev->wiphy);
rdev_rfkill_poll(rdev); rdev_rfkill_poll(rdev);
wiphy_unlock(&rdev->wiphy);
} }
void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev, void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,