linux-kernel - Re: CVE-2025-38495: HID: core: ensure the allocated report buffer can contain the reserved report ID

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Message-ID: <c0d698cbcea6f46e6959ab1db07735cea76f3770.camel@oracle.com>
Date: Tue, 30 Sep 2025 11:32:25 +0000
From: Siddh Raman Pant <siddh.raman.pant@...cle.com>
To: "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC: "cve@...nel.org" <cve@...nel.org>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: Re: CVE-2025-38495: HID: core: ensure the allocated report buffer can
 contain the reserved report ID

On Tue, Sep 30 2025 at 16:52:30 +0530, gregkh@...uxfoundation.org
wrote:
> Is the CVE referenced here in the Subject line, and the git id it
> references not valid?

It is valid.

> Is there some other commit that also fixes a vulnerability
> that should also be assigned to a new CVE?

Yes: 0d0777ccaa2d46609d05b66ba0096802a2746193 which is immediately
after the commit in title, and fixes the underflow reported by
syzkaller (see [1] and the commit message for the tested-by), which is
the main bug, for which there is also a public exploit (see [2]).

[1] https://lore.kernel.org/all/686bb229.a00a0220.c7b3.0081.GAE@google.com/t/#u

[2] https://github.com/xairy/kernel-exploits/tree/master/CVE-2025-38494

Thanks,
Siddh

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