CVE-2026-64562
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
43/100
Published: 2026-08-04
Modified: 2026-11-13
First seen: 2026-11-03
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
Scope Change
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Changed
C:
High
I:
High
A:
High
Description
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.
Weakness Classification (1)
Affected Software (11)
| Vendor | Product | Version |
|---|---|---|
| linux | linux_kernel | 4.9.1 – 5.10.265 |
| linux | linux_kernel | 4.9 |
| linux | linux_kernel | 4.9 |
| linux | linux_kernel | 4.9 |
| linux | linux_kernel | 4.9 |
| linux | linux_kernel | 4.9 |
| linux | linux_kernel | 4.9 |
| linux | linux_kernel | 7.2 |
| linux | linux_kernel | 7.2 |
| linux | linux_kernel | 7.2 |
| linux | linux_kernel | 7.2 |