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From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 27 Apr 2024 18:54:25 +0200
Subject: [PATCH] net: bridge: fix multicast-to-unicast with fraglist GSO
Calling skb_copy on a SKB_GSO_FRAGLIST skb is not valid, since it returns
an invalid linearized skb. This code only needs to change the ethernet
header, so pskb_copy is the right function to call here.
Fixes: 6db6f0eae605 ("bridge: multicast to unicast")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -261,7 +261,7 @@ static void maybe_deliver_addr(struct ne
if (skb->dev == p->dev && ether_addr_equal(src, addr))
return;
- skb = skb_copy(skb, GFP_ATOMIC);
+ skb = pskb_copy(skb, GFP_ATOMIC);
if (!skb) {
DEV_STATS_INC(dev, tx_dropped);
return;
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