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

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Message-ID: <566EF943.9070501@oracle.com>
Date:	Mon, 14 Dec 2015 12:15:47 -0500
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Paul Mackerras <paulus@...abs.org>, linux-kernel@...r.kernel.org
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>, stable@...r.kernel.org
Subject: Re: Bad backport of "net: Fix skb_set_peeked use-after-free bug" in
 3.18.23

On 12/13/2015 09:44 PM, Paul Mackerras wrote:
> 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?

Sorry about that, looks like my script has gone haywire :/

I've fixed it, pushed queue and will ship tomorrow after testing.


Thanks,
Sasha
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