ROOT-OS-UBUNTU-2204-CVE-2026-64247 CVE-2026-64247 in linux - Patched by Root

Root has patched CVE-2026-64247 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available...

CVE-2026-64247

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine Hyper-V component. A local attacker with access to a KVM guest could exploit this by providing an out-of-range Virtual Processor VP ID during a paravirtual Translation Lookaside Buffer TLB flush. This could lead to an...

CVE-2026-64247

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...