From 48668eb1ede2fff6648420a8e8f626622e29b1ee Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 9 Sep 2020 01:27:40 -0700 Subject: [PATCH] net: add __must_check to skb_put_padto() [ Upstream commit 4a009cb04aeca0de60b73f37b102573354214b52 ] skb_put_padto() and __skb_put_padto() callers must check return values or risk use-after-free. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- include/linux/skbuff.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index e37112a..fe4b7e4 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2795,7 +2795,7 @@ static inline int skb_padto(struct sk_buff *skb, unsigned int len) * is untouched. Otherwise it is extended. Returns zero on * success. The skb is freed on error. */ -static inline int skb_put_padto(struct sk_buff *skb, unsigned int len) +static inline int __must_check skb_put_padto(struct sk_buff *skb, unsigned int len) { unsigned int size = skb->len; -- 2.7.4