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bonding: Return pointer to data after pull on skb

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commit d93f3f992780af4a21e6c1ab86946b7c5602f1b9 upstream.

Since 429e3d123d ("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: 429e3d123d ("bonding: Fix extraction of ports from the packet headers")
Signed-off-by: Jiri Wiesner <jwiesner@suse.de>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Wiesner 2023-10-10 18:39:33 +02:00 committed by Greg Kroah-Hartman
parent 3065fabd17
commit ec7393fe63
1 changed files with 1 additions and 1 deletions
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2
drivers/net/bonding/bond_main.c
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@ -3990,7 +3990,7 @@ 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;
}