KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded
CVSS score
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EPSS probability
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Risk score
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Published
14 h ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
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Source agreement
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Evidence confidence
%63
Short explanation
A vulnerability has been identified in the Linux kernel affecting the KVM SVM subsystem. The issue stems from updating control fields when VMRUN fails.
Since there is no explicit architectural guarantee when VMRUN fails, it must be assumed that actions requested in control fields may not have been performed.
What should be done?
- Follow vendor advisories
- Apply relevant kernel updates
Chain of evidence and sources
Linux kernelinde KVM SVM alt sistemini etkileyen bir zafiyet giderilmiştir.
VMRUN başarısız olduğunda AMD mimari garantisi bulunmamaktadır.
Show the technical text from the sources
In 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.
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
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Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-98714 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-98714 weaknesses.
Official Sources and Advisories
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