linux-kernel - Re: CVE-2024-49967: ext4: no need to continue when the number of entries is 1

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Message-ID: <87a034f185ff5e865bc5d0db8121c39086c4f5c9.camel@oracle.com>
Date: Tue, 10 Dec 2024 06:08:46 +0000
From: Siddh Raman Pant <siddh.raman.pant@...cle.com>
To: "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "tytso@....edu"
	<tytso@....edu>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: CVE-2024-49967: ext4: no need to continue when the number of
 entries is 1

On Mon, Dec 09 2024 at 21:56:23 +0530, Theodore Ts'o wrote:
> On Mon, Dec 09, 2024 at 02:08:02PM +0100, gregkh@...uxfoundation.org wrote:
> > Ok, so should it be revoked?

Yes, as this was an incorrect attempt at fixing CVE-2024-42305.

> We're not aware of a way of triggering the OOB error, so in that sense
> the CVE is not valid.  There might be a way that someone might be able
> to trigger it in the future; in that hypothetical future, there might
> be some other fix that would address the root cause, but this would be
> a belt and suspenders thing that might prevent that (hypothetical)
> future.  So in that sense, it is highly commended that enterprise
> distros and people who are not following the LTS kernels take this
> patch.  But is it actually fixing a known vulnerability today?  Not
> that we know of.
> 
> Cheers,
> 
> 						- Ted
> 
> P.S.  If some security researcher wants to find such a way, to educate
> people on why using LTS kernels is superior, they should feel free to
> consider this a challenge.  :-P

I agree.

Thanks,
Siddh

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