From: lily floridsleeves@gmail.com
[ 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 --- net/core/skbuff.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 635cabcf8794f..7bdcdad58dc86 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3986,9 +3986,8 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb, 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; }