KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded

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Summary

CVECVE-2026-98714
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:17:24 UTC
Updated2026-10-26 07:17:11 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded Leave control.erap_ctl and control.clean as-is in the VMCS if VMRUN fails, because as per AMD: there's no explicit architectural guarantee about the behavior in the presence of VMRUN failures. So the best thing to do would be to assume that if VMRUN fails, the actions requested in the control fields may not have been performed.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 8d28fec406e4d5ce6c109fe12699976e72e9748e 8676b29d186fcb5c1251d8152fc91d19421e5600 git Not specified
CNA Linux Linux affected 8d28fec406e4d5ce6c109fe12699976e72e9748e e27fc915c8f575ab5630e27d97465c2077d4b9d1 git Not specified
CNA Linux Linux affected 2.6.38 Not specified
CNA Linux Linux unaffected 2.6.38 semver Not specified
CNA Linux Linux unaffected 7.2.10 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e27fc915c8f575ab5630e27d97465c2077d4b9d1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8676b29d186fcb5c1251d8152fc91d19421e5600 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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