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MEDIUM

kernel: xen: Broken error handling in guest_physmap_mark_populate_on_demand()

Published Dec 13, 2012

Description

The guest_physmap_mark_populate_on_demand function in Xen 4.2 and earlier does not properly unlock the subject GFNs when checking if they are in use, which allows local guest HVM administrators to cause a denial of service (hang) via unspecified vectors.

Affected products

Remediation

Red Hat statement

Not vulnerable. This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5. This issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as we did not have support for Xen hypervisor.

Metrics

Weaknesses (0)

No CWE recorded.

References (23)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Dec 13, 2012
Updated Aug 6, 2024
Reserved Oct 24, 2012
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity Moderate
Public date Dec 3, 2012