From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05934C142 for ; Mon, 19 Jun 2023 10:58:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65A32C433C8; Mon, 19 Jun 2023 10:58:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1687172338; bh=rdiy3boReURjM9Iv+4izQiLvwjRJOGrJcui7kNF4eds=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YC1UdJEsEBnUptwA5C6YiDmdx8Lh80GKyuxKmyXUnzKK5eQlyuEfIZhYM7YxsWwP2 aS8q/EYsnYsegO60x9hc0WSIsYk05DzACEc8DfEgAh9K50KaKzLPAwwcAbjfap5FpK AvAOSc532b/7S6mzP18kCCHH+Ka+3xMhLuFLbd7Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Johannes Berg Subject: [PATCH 5.15 033/107] wifi: cfg80211: fix locking in regulatory disconnect Date: Mon, 19 Jun 2023 12:30:17 +0200 Message-ID: <20230619102143.089186322@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230619102141.541044823@linuxfoundation.org> References: <20230619102141.541044823@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Johannes Berg commit f7e60032c6618dfd643c7210d5cba2789e2de2e2 upstream. This should use wiphy_lock() now instead of requiring the RTNL, since __cfg80211_leave() via cfg80211_leave() is now requiring that lock to be held. Fixes: a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver") Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman --- net/wireless/reg.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -2423,11 +2423,11 @@ static void reg_leave_invalid_chans(stru struct wireless_dev *wdev; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); - ASSERT_RTNL(); - + wiphy_lock(wiphy); list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) if (!reg_wdev_chan_valid(wiphy, wdev)) cfg80211_leave(rdev, wdev); + wiphy_unlock(wiphy); } static void reg_check_chans_work(struct work_struct *work)