From 7521ce6eb2d3650a04ac7a1d176607ae9441826a Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Wed, 11 Feb 2015 23:12:25 +0530 Subject: [PATCH] mwifiex: do not process mgmt rx on uninitialized interface This patch fixes a crash which was happening because of RX of management frames on uninitialzed interface. Now we drop management frames for interfaces where cfg80211 has not registered any management subtype reception or interface has no NL80211 iftype set. Signed-off-by: Avinash Patil Signed-off-by: Kalle Valo --- drivers/net/wireless/mwifiex/util.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/wireless/mwifiex/util.c b/drivers/net/wireless/mwifiex/util.c index 308550611f22..47e215b6d5f5 100644 --- a/drivers/net/wireless/mwifiex/util.c +++ b/drivers/net/wireless/mwifiex/util.c @@ -367,6 +367,13 @@ mwifiex_process_mgmt_packet(struct mwifiex_private *priv, if (!skb) return -1; + if (!priv->mgmt_frame_mask || + priv->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) { + dev_dbg(priv->adapter->dev, + "do not receive mgmt frames on uninitialized intf"); + return -1; + } + rx_pd = (struct rxpd *)skb->data; skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset)); -- 2.20.1