What’s Vulnerable › Vulnerabilities

CVE-2026-98652: KVM: s390: Add missing srcu in kvm_s390_set_irq_state()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-19

Description

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().

Affected products

• Linux kernel: 2.6.26 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/7a33007b95c8908ae3980eb2b4c508f8936766df
• https://git.kernel.org/stable/c/f3a557067d57ce6ae98d485c8009b223e16f5f36

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