cfg80211: check wdev->netdev in connection work
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>
Cc: Qiang Huang <h.huangqiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index f7e937f..3fd50a1 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -222,6 +222,9 @@
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);