AZL-94404
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-94404.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-94404
- Upstream
- Published
- 2026-08-04T07:16:31Z
- Modified
- 2026-08-28T17:47:40.820464246Z
- Summary
- CVE-2026-64562 affecting package kernel for versions less than 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
KVM: nVMX: Hide shadow VMCS right after VMCLEAR
freenested() frees the shadow VMCS while vmcs01 still points to it. But because it is asynchronous with respect to loadedvmcs_clear(), the vCPU might migrate before the pointer is cleared and __loadedvmcsclear() 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.
- References