Without this patch, if xmit_skb is null but net_ratelimit() returns 0 we would
go to the else branch and access the null xmit_skb. Pointed out by Johannes
Berg.
Signed-off-by: Luis Carlos Cobo <luisca@xxxxxxxxxxx>
---
net/mac80211/rx.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index e8b89c8..bc66d99 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1300,11 +1300,11 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
if (is_multicast_ether_addr(skb->data)) {
if (*mesh_ttl > 0) {
xmit_skb = skb_copy(skb, GFP_ATOMIC);
- if (!xmit_skb && net_ratelimit())
+ if (xmit_skb)
+ xmit_skb->pkt_type = PACKET_OTHERHOST;
+ else if (net_ratelimit())
printk(KERN_DEBUG "%s: failed to clone "
"multicast frame\n", dev->name);
- else
- xmit_skb->pkt_type = PACKET_OTHERHOST;
} else
IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.sta,
dropped_frames_ttl);
--
1.5.4.3
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