linux-kernel - Re: [RFC 0/3] block: address blktrace use-after-free

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Message-ID: <20200402074419.GD2755501@kroah.com>
Date:   Thu, 2 Apr 2020 09:44:19 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     axboe@...nel.dk, viro@...iv.linux.org.uk, rostedt@...dmis.org,
        mingo@...hat.com, jack@...e.cz, ming.lei@...hat.com,
        nstange@...e.de, mhocko@...e.com, linux-block@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC 0/3] block: address blktrace use-after-free

On Wed, Apr 01, 2020 at 11:59:59PM +0000, Luis Chamberlain wrote:
> Upstream kernel.org korg#205713 contends that there is a UAF in
> the core debugfs debugfs_remove() function, and has gone through
> pushing for a CVE for this, CVE-2019-19770.

As you point out, that CVE is crazy and pointless, thanks for seeing
this through.

greg k-h