Received-SPF: pass (google.com: domain of linux-kernel+bounces-185197-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161;
Date: Tue, 21 May 2024 18:05:03 +0200
From: Michal Hocko <mhocko@suse.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: cve@kernel.org, linux-kernel@vger.kernel.org,
	Jason Xing <kernelxing@tencent.com>,
	linux-cve-announce@vger.kernel.org
Subject: Re: CVE-2024-27429: netrom: Fix a data-race around
 sysctl_netrom_obsolescence_count_initialiser
Message-ID: <ZkzGL_vXciG7ipm5@tiehlicka>
References: <2024051722-CVE-2024-27429-878c@gregkh>
 <ZkxdqOUek_MHqIMn@tiehlicka>
 <2024052105-pulsate-reborn-119a@gregkh>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <2024052105-pulsate-reborn-119a@gregkh>

On Tue 21-05-24 16:40:24, Greg KH wrote:
> On Tue, May 21, 2024 at 10:39:04AM +0200, Michal Hocko wrote:
> > This and couple of others are all having the same pattern. Adding
> > READ_ONCE for an integer value with a claim that this might race with
> > sysctl updates. While the claim about the race is correct I fail to see
> > how this could have any security consequences. Even if a partial write
> > was observed which sounds _more_ than theoretical these all are merely
> > timeouts and delays.
> > 
> > Is there anything I am missing?
> 
> Nope, you are right, our fault, I'll go revoke this now.

please also revoke all others touching the same function.

-- 
Michal Hocko
SUSE Labs