Bug 2554925 (CVE-2026-98652) - CVE-2026-98652 kernel: KVM: s390: Add missing srcu in kvm_s390_set_irq_state()
Summary: CVE-2026-98652 kernel: KVM: s390: Add missing srcu in kvm_s390_set_irq_state()
Keywords:
Status: NEW
Alias: CVE-2026-98652
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-18 15:33 UTC by OSIDB Bzimport
Modified: 2026-10-21 20:35 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-10-18 15:33:04 UTC 
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().
Comment 1 Mauro Matteo Cascella 2026-10-21 20:29:04 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98652.mbox
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