[PATCH v1] net/core/skbuff: Check the return value of skb_copy_bits()

lily
2022-08-23T05:45:46Z

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

Signed-off-by: Li Zhong <floridsleeves@gmail.com>
---
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 974bbbbe7138..5ea1d074a920 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4205,9 +4205,8 @@ 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;
}
--
2.25.1