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net/core/skbuff: Check the return value of skb_copy_bits()

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[ Upstream commit c624c58e08b15105662b9ab9be23d14a6b945a49 ]

skb_copy_bits() could fail, which requires a check on the return
value.

Signed-off-by: Li Zhong <floridsleeves@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
lily 2022-08-22 22:44:11 -07:00 committed by Greg Kroah-Hartman
parent bd1b769564
commit 0b7058067e
1 changed files with 2 additions and 3 deletions
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5
net/core/skbuff.c
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@ -4188,9 +4188,8 @@ normal:
SKB_GSO_CB(nskb)->csum_start =
skb_headroom(nskb) + doffset;
} else {
skb_copy_bits(head_skb, offset,
skb_put(nskb, len),
len);
if (skb_copy_bits(head_skb, offset, skb_put(nskb, len), len))
goto err;
}
continue;
}