linux-kernel - Bad backport of "net: Fix skb_set_peeked use-after-free bug" in 3.18.23

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Date:	Mon, 14 Dec 2015 13:44:26 +1100
From:	Paul Mackerras <paulus@...abs.org>
To:	Sasha Levin <sasha.levin@...cle.com>, linux-kernel@...r.kernel.org
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>, stable@...r.kernel.org
Subject: Bad backport of "net: Fix skb_set_peeked use-after-free bug" in
 3.18.23

Commit d9a1133495b4 ("net: Fix skb_set_peeked use-after-free bug") in
3.18.23 claims to be a backport of commit a0a2a6602496, but in fact
the patch is identical to commit 738ac1ebb96d ("net: Clone skb before
setting peeked flag"), which is the commit that introduces the
use-after-free bug that a0a2a6602496 fixes.

The result is that we have been seeing crashes in __skb_recv_datagram
since I merged v3.18.24 into the kernel code we are using for a
product.  Could someone fix this with an actual backport of
a0a2a6602496 please?

Thanks,
Paul.
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