CVE-2026-64562
In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Hide shadow VMCS right after VMCLEAR free_nested() frees the shadow VMCS while v…
Impact
In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Hide shadow VMCS right after VMCLEAR free_nested() frees the shadow VMCS while vmcs01 still points to it. But because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU might migrate before the pointer is cleared and __loaded_vmcs_clear() may then execute VMCLEAR. The VMCS needs to stay attached until its explicit VMCLEAR completes, but then it can be hidden and the page safely freed.
Affected packages
This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/1dabef6e206568bf9d9ade74f6e56a48ea35695d
- https://git.kernel.org/stable/c/4f50e6aec16f69627dbad5704d1e90a255d766a7
- https://git.kernel.org/stable/c/589419470030a89f16cf19300658b6dc644ca946
- https://git.kernel.org/stable/c/622ebfac01ba4f9c0060cebd41257fe46fc4a0b3
- https://git.kernel.org/stable/c/8001d2ce9d9bd09118ce523aef595aa094573ae3
- https://git.kernel.org/stable/c/af56298e9d86e6098cd1d2e155cb2949b7c45412
- https://git.kernel.org/stable/c/b82c3144d8264265448292ca406f60bafeba3b6f
- https://git.kernel.org/stable/c/dc3eecfa219ebc9d01eaf7d1abd1441efe884dab