KVM: s390: Add missing srcu in kvm_s390_set_irq_state()
CVSS score
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EPSS probability
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Risk score
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Published
21 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
The CVE-2026-98652 vulnerability in the Linux kernel KVM s390 subsystem occurs because the kvm_s390_set_irq_state function lacks the necessary kvm->srcu lock during the Store status operation.
This vulnerability affects the KVM s390 component within the Linux kernel virtualization infrastructure. The missing locking mechanism can lead to runtime errors that compromise system stability and security.
What should be done?
- Follow vendor advisories
- Apply kernel updates
Chain of evidence and sources
CVE-2026-98652 zafiyeti, kvm_s390_set_irq_state fonksiyonunda eksik olan kvm->srcu kilidinden kaynaklanmaktadır.
Sorunun giderilmesi için kvm_s390_set_irq_state fonksiyonuna kvm->srcu eklenmesi gerekmektedir.
Show the technical text from the sources
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Add missing srcu in kvm_s390_set_irq_state() Like kvm_s390_inject_vcpu(), kvm_s390_set_irq_state() also needs the kvm->srcu or the slots lock when performing the Store status operation. Fix by taking kvm->srcu in kvm_s390_set_irq_state().
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
CVSS Scores
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| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
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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-2026-98652 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-2026-98652 weaknesses.
Official Sources and Advisories
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