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

From: Alexander Aring

Date: Mon May 25 2026 - 13:39:49 EST


Hi,

On Mon, May 25, 2026 at 10:27 AM Alexander Aring <aahringo@xxxxxxxxxx> wrote:
>
> Hi,
>
> On Sat, May 16, 2026 at 10:03 PM Joseph Qi <joseph.qi@xxxxxxxxxxxxxxxxx> 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/