Re: [PATCH v2] dlm: fix buffer overflow from negative len in dlm_search_rsb_tree

Alexander Aring <[email protected]> Mon, 25 May 2026 13:39:24 -0400

Newsgroups	dev.linux.lists.gfs2,org.kernel.vger.linux-kernel
Message-ID	<CAK-6q+iC3AgX7r2fZkvDJHibS0oqTwVCF4ZgV-1OFkV0d=R2Vw@mail.gmail.com>

Hi,

On Mon, May 25, 2026 at 10:27 AM Alexander Aring <[email protected]> wrote:
>
> Hi,
>
> On Sat, May 16, 2026 at 10:03 PM Joseph Qi <[email protected]> wrote:
> >
> > commit 080e5563f878 only checks for len > DLM_RESNAME_MAXLEN, which does
>
> check with checkpath, it reports an error regarding how this commit
> reference is done.
>

This also addresses CVE-2026-43125 [0].

- Alex

[0] https://lore.kernel.org/linux-cve-announce/2026050619-CVE-2026-43125-c9f9@gregkh/