linux-kernel - Re: KVM: Fix stack-out-of-bounds read in write

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Message-ID: <20180117050615.GB26215@kroah.com>
Date:   Wed, 17 Jan 2018 06:06:15 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Your Real Name <alakeshh@...zon.com>
Cc:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: KVM: Fix stack-out-of-bounds read in write_mmio

On Tue, Jan 16, 2018 at 10:45:50PM +0000, Your Real Name wrote:

Odd "real name" :(

> Commit: e39d200fa5bf5b94a0948db0dae44c1b73b84a56 
> Target Stable Tree Branch: 4.9.y

Why only this specific branch?  Why not all stable branches?  You do not
want to move from 4.9.y to 4.14.y and have a regression, right?

What about 4.4.y?

> Why this patch is needed: Due to a request to handle CVE-2017-17741, we would need to backport this patch to our kernel. The patch is already in mainline:https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e39d200fa5bf5b94a0948db0dae44c1b73b84a56

What is "our kernel"?

> Could you please include this patch in 4.9.y stable tree branch?

Have you looked at the recent 4.9-rc release already and tested it out
to see if it works properly for you for this issue?

thanks,

greg k-h