Xen Security Advisory 441 v4 (CVE-2023-34324) – Possible deadlock in Linux kernel event handling

Xen Security Advisory 441 v4 (CVE-2023-34324) – Possible deadlock in Linux kernel event handling

Open Source Security 

Posted by Xen . org security team on Oct 10

Xen Security Advisory CVE-2023-34324 / XSA-441
version 4

Possible deadlock in Linux kernel event handling

UPDATES IN VERSION 4
====================

Public release.

Modified advisory again to state that Arm32 guests are NOT affected.

ISSUE DESCRIPTION
=================

Closing of an event channel in the Linux kernel can result in a deadlock.
This happens when the close is being performed…
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