From: Herbert Xu <herb...@gondor.apana.org.au>
Date: Tue, 4 Aug 2015 15:42:47 +0800
> The commit 738ac1ebb96d02e0d23bc320302a6ea94c612dec ("net: Clone
> skb before setting peeked flag") introduced a use-after-free bug
> in skb_recv_datagram. This is because skb_set_peeked may create
> a new skb and free the existing one. As it stands the caller will
> continue to use the old freed skb.
>
> This patch fixes it by making skb_set_peeked return the new skb
> (or the old one if unchanged).
>
> Fixes: 738ac1ebb96d ("net: Clone skb before setting peeked flag")
> Reported-by: Brenden Blanco <bbla...@plumgrid.com>
> Signed-off-by: Herbert Xu <herb...@gondor.apana.org.au>
Applied, and since the commit this is fixing is queued up for -stable
I'll of course queue this up too.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
