From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, YanBo , Johannes Berg Subject: [ 110/127] cfg80211: check wdev->netdev in connection work Date: Wed, 5 Jun 2013 14:34:37 -0700 Message-Id: <20130605213230.518489536@linuxfoundation.org> In-Reply-To: <20130605213217.966891866@linuxfoundation.org> References: <20130605213217.966891866@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johannes Berg commit c815797663b72e3ac1736f1886538152bc48e4af upstream. If a P2P-Device is present and another virtual interface triggers the connection work, the system crash because it tries to check if the P2P-Device's netdev (which doesn't exist) is up. Skip any wdevs that have no netdev to fix this. Reported-by: YanBo Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman --- net/wireless/sme.c | 3 +++ 1 file changed, 3 insertions(+) --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -227,6 +227,9 @@ void cfg80211_conn_work(struct work_stru mutex_lock(&rdev->sched_scan_mtx); list_for_each_entry(wdev, &rdev->wdev_list, list) { + if (!wdev->netdev) + continue; + wdev_lock(wdev); if (!netif_running(wdev->netdev)) { wdev_unlock(wdev);