From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Ben Hutchings <ben.hutchings@codethink.co.uk>
Cc: Sasha Levin <Alexander.Levin@microsoft.com>,
stable <stable@vger.kernel.org>,
Lorenzo Stoakes <lstoakes@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Willy Tarreau <w@1wt.eu>
Subject: Re: Fix for CVE-2018-1120 in 4.4
Date: Thu, 13 Dec 2018 21:39:51 +0100 [thread overview]
Message-ID: <20181213203951.GA14642@kroah.com> (raw)
In-Reply-To: <1544732664.19315.59.camel@codethink.co.uk>
On Thu, Dec 13, 2018 at 08:24:24PM +0000, Ben Hutchings wrote:
> I've backported changes to fix CVE-2018-1120 (denial of service via
> FUSE-backed /proc/PID/cmdline)�in 4.4-stable. See
> <https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt>
> for an explanation of the issue.
>
> This was already fixed in newer stable branches, but the fix depended
> on API changes made in 4.9. The API changes are fairly straightforward
> and should be low risk, so the attached patches include those API
> changes.
>
> I verified that the proof-of-concept no longer works after these
> changes, and that there were no regressions in the user-copy and vm
> self-tests. I leave it to you to decide whether it's worthwhile to fix
> this in 4.4.
Wow, thanks for this, I never expected to see this happen, nice job.
All now queued up.
greg k-h
prev parent reply other threads:[~2018-12-13 20:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-13 20:24 Fix for CVE-2018-1120 in 4.4 Ben Hutchings
2018-12-13 20:39 ` Greg Kroah-Hartman [this message]
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