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Unrated severityNVD Advisory· Published May 17, 2012· Updated Jun 16, 2026

CVE-2012-2121

CVE-2012-2121

Description

The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.

AI Insight

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Affected products

2
  • Linux/Kernel2 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <=3.3.3
    • (no CPE)range: <3.3.4

Patches

Vulnerability mechanics

References

11

News mentions

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