Memory Leak and Host OS Crash Vulnerability in Linux Kernel's KVM Implementation

CVE-2012-2121 · MEDIUM Severity

AV:L/AC:L/AU:N/C:N/I:N/A:C

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.

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