CVE-2026-64562
KVM: nVMX: Hide shadow VMCS right after VMCLEAR
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 4, 2026 |
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Affected Versions
Linux / Linux
355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < af56298e9d86e6098cd1d2e155cb2949b7c45412 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 589419470030a89f16cf19300658b6dc644ca946 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 8001d2ce9d9bd09118ce523aef595aa094573ae3 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 1dabef6e206568bf9d9ade74f6e56a48ea35695d 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 622ebfac01ba4f9c0060cebd41257fe46fc4a0b3
Linux / Linux
4.9
References
git.kernel.org: https://git.kernel.org/stable/c/af56298e9d86e6098cd1d2e155cb2949b7c45412 git.kernel.org: https://git.kernel.org/stable/c/589419470030a89f16cf19300658b6dc644ca946 git.kernel.org: https://git.kernel.org/stable/c/8001d2ce9d9bd09118ce523aef595aa094573ae3 git.kernel.org: https://git.kernel.org/stable/c/1dabef6e206568bf9d9ade74f6e56a48ea35695d git.kernel.org: https://git.kernel.org/stable/c/622ebfac01ba4f9c0060cebd41257fe46fc4a0b3