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CVE-2011-4622

The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable…

Medium4.9EPSS 0.35%
Published
Updated
Reserved
Assigned by
redhat

Description

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.

Scores

CVSS scores of CVE-2011-4622, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0Medium4.9AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS (exploitation in 30 days)
0.35% · top 72% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.

Weakness

  • n/a

Affected products

  • n/a

    • affected n/a

References (8)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .