The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2012-01-27T15:00:00

Updated: 2024-08-07T00:09:19.494Z

Reserved: 2011-11-29T00:00:00

Link: CVE-2011-4622

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2012-01-27T15:55:04.687

Modified: 2024-11-21T01:32:41.037

Link: CVE-2011-4622

cve-icon Redhat

Severity : Moderate

Publid Date: 2011-12-14T00:00:00Z

Links: CVE-2011-4622 - Bugzilla