Subject: [PATCH net] bonding: Return pointer to data after pull on skb

From: Jiri Wiesner <[email-masked]>
Date: Tue, 10 Oct 2023 18:39:33 +0200

Since 429e3d123d9a ("bonding: Fix extraction of ports from the packet
headers"), header offsets used to compute a hash in bond_xmit_hash() are
relative to skb->data and not skb->head. If the tail of the header buffer
of an skb really needs to be advanced and the operation is successful, the
pointer to the data must be returned (and not a pointer to the head of the
buffer).

Fixes: 429e3d123d9a ("bonding: Fix extraction of ports from the packet headers")
Signed-off-by: Jiri Wiesner <[email-masked]>
---
 drivers/net/bonding/bond_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index ed7212e61c54..51d47eda1c87 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4023,7 +4023,7 @@ static inline const void *bond_pull_data(struct sk_buff *skb,
 	if (likely(n <= hlen))
 		return data;
 	else if (skb && likely(pskb_may_pull(skb, n)))
-		return skb->head;
+		return skb->data;
 
 	return NULL;
 }
-- 
2.35.3

-- 
Jiri Wiesner
SUSE Labs