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Commit 48668eb1 authored by Eric Dumazet's avatar Eric Dumazet Committed by Greg Kroah-Hartman
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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: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9429a6b7

include/linux/skbuff.h

+1 −1
Original line number Diff line number Diff line
@@ -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;