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net: veth: fix packet segmentation in veth_convert_skb_to_xdp_buff

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Based on the previous allocated packet, page_offset can be not null
in veth_convert_skb_to_xdp_buff routine.
Take into account page fragment offset during the skb paged area copy
in veth_convert_skb_to_xdp_buff().

Fixes: 2d0de67da5 ("net: veth: use newly added page pool API for veth with xdp")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com>
Link: https://lore.kernel.org/r/eddfe549e7e626870071930964ac3c38a1dc8068.1701702000.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Lorenzo Bianconi 2023-12-04 16:01:48 +01:00 committed by Jakub Kicinski
parent 3c91c909f1
commit a61f46e110
1 changed files with 2 additions and 1 deletions
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3
drivers/net/veth.c
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@ -790,7 +790,8 @@ static int veth_convert_skb_to_xdp_buff(struct veth_rq *rq,
skb_add_rx_frag(nskb, i, page, page_offset, size,
truesize);
if (skb_copy_bits(skb, off, page_address(page),
if (skb_copy_bits(skb, off,
page_address(page) + page_offset,
size)) {
consume_skb(nskb);
goto drop;