| From | Ben Hutchings <> | Date | Sun, 16 Jun 2013 23:01:37 +0100 | Subject | [04/83] cfg80211: check wdev->netdev in connection work |
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3.2.47-rc1 review patch. If anyone has any objections, please let me know.
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From: Johannes Berg <johannes.berg@intel.com>
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 <dreamfly281@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- net/wireless/sme.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -220,6 +220,9 @@ void cfg80211_conn_work(struct work_stru mutex_lock(&rdev->devlist_mtx); list_for_each_entry(wdev, &rdev->netdev_list, list) { + if (!wdev->netdev) + continue; + wdev_lock(wdev); if (!netif_running(wdev->netdev)) { wdev_unlock(wdev);
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