CVE-2009-3638: Linux Kernel

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Integer overflow in the kvm_dev_ioctl_get_supported_cpuid function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.31.4 allows local users to have an unspecified impact via a KVM_GET_SUPPORTED_CPUID request to the kvm_arch_dev_ioctl function.

Affected products

• Linux Linux Kernel: up to and including 2.6.31.3; version 2.6.0 only; version 2.6.1 only; version 2.6.2 only; version 2.6.3 only; version 2.6.4 only; …

Published 2009-10-29. Last modified 2026-06-16.