6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Felix Fietkau <nbd@xxxxxxxx>
commit 8f0149a8ac59c12cd47271ac625c27dac5621d3a upstream.
Linearize packets (needed for forwarding A-MSDU subframes).
Fixes: 986e43b19ae9 ("wifi: mac80211: fix receiving A-MSDU frames on mesh interfaces")
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Link: https://lore.kernel.org/r/20230324120924.38412-1-nbd@xxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mac80211/rx.c | 3 +++
1 file changed, 3 insertions(+)
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2838,6 +2838,9 @@ ieee80211_rx_mesh_data(struct ieee80211_
if (skb_cow_head(fwd_skb, hdrlen - sizeof(struct ethhdr)))
return RX_DROP_UNUSABLE;
+
+ if (skb_linearize(fwd_skb))
+ return RX_DROP_UNUSABLE;
}
fwd_hdr = skb_push(fwd_skb, hdrlen - sizeof(struct ethhdr));
