KVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89931
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 11:17:02 UTC
Updated2026-10-19 09:18:38 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit Always check and clear KVM_REQ_GET_NESTED_STATE_PAGES when emulating a nested VM-Exit to ensure the request is cleared, even when KVM was built with CONFIG_KVM_HYPERV=n, as KVM subtly relies on the "check" to clear the flag and thus avoid double-mapping the vmcs12 pages, e.g. if KVM manages to bail from VM-Enter without processing the request, and then emulates VMLAUNCH or VMRESUME.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected b4f69df0f65e97fec439130a0d0a8b9c7cc02df2 ae190f2439ca30067927077bf570d4c5edf07a0f git Not specified
CNA Linux Linux affected b4f69df0f65e97fec439130a0d0a8b9c7cc02df2 674a3244f07f323f21a106a7bdcaebb6db6a5058 git Not specified
CNA Linux Linux affected b4f69df0f65e97fec439130a0d0a8b9c7cc02df2 bbec4adc2f340d85f4a77a9ddcddaa6b1f4639c5 git Not specified
CNA Linux Linux affected b4f69df0f65e97fec439130a0d0a8b9c7cc02df2 11722439fb206c88e6f31be54173efa9880b4ccb git Not specified
CNA Linux Linux affected 6.8 Not specified
CNA Linux Linux unaffected 6.8 semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.51 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.5 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/bbec4adc2f340d85f4a77a9ddcddaa6b1f4639c5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/11722439fb206c88e6f31be54173efa9880b4ccb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ae190f2439ca30067927077bf570d4c5edf07a0f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/674a3244f07f323f21a106a7bdcaebb6db6a5058 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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