From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Xen-devel <xen-devel@lists.xenproject.org>,
Anthony PERARD <anthony.perard@vates.tech>,
Michal Orzel <michal.orzel@amd.com>,
Jan Beulich <jbeulich@suse.com>, Julien Grall <julien@xen.org>,
Stefano Stabellini <sstabellini@kernel.org>,
Oleksii Kurochko <oleksii.kurochko@gmail.com>
Subject: Re: [PATCH for-4.22] tools/libfsimage: Remove the XEN_FSIMAGE_FSDIR environment variable
Date: Thu, 2 Jul 2026 17:39:56 +0200 [thread overview]
Message-ID: <akaGTETSE5m8rXmr@macbook.local> (raw)
In-Reply-To: <20260702150301.825883-1-andrew.cooper3@citrix.com>
On Thu, Jul 02, 2026 at 04:03:01PM +0100, Andrew Cooper wrote:
> This was reported to the security team, demonstrating that code execution
> could be achieved, but without a demonstration of a priviliege boundary being
> bypassed.
>
> Still, it's a high risk path with no obvious evidence of having been used even
> for debugging, so remove the environment variable and use the build time
> $(libdir)/xenfsimage path only.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Thanks, Roger.
next prev parent reply other threads:[~2026-07-02 15:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-02 15:03 [PATCH for-4.22] tools/libfsimage: Remove the XEN_FSIMAGE_FSDIR environment variable Andrew Cooper
2026-07-02 15:39 ` Roger Pau Monné [this message]
2026-07-03 11:00 ` Oleksii Kurochko
2026-07-03 13:08 ` Anthony PERARD
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