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CVE-2026-98652VulnerabilityPublished Updated

kvm_s390_set_irq_state() · KVM: s390: Add missing srcu

Affects MicrosoftSource GCVE Database

0
Authoritative record:CVE-2026-98652

Not known to be exploited : upgrade to f3a557067d57ce6ae98d485c8009b223e16f5f36 or 7a33007b95c8908ae3980eb2b4c508f8936766df when convenient.

Data as of 28 Oct 2026, 09:14 UTC

Severity
Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in f3a557067d57ce6ae98d485c8009b223e16f5f36, 7a33007b95c8908ae3980eb2b4c508f8936766df

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Linux to f3a557067d57ce6ae98d485c8009b223e16f5f36 or 7a33007b95c8908ae3980eb2b4c508f8936766df.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ ba5c1e9b6ceebdc39343cc03eb39f077abd3c571, < f3a557067d57ce6ae98d485c8009b223e16f5f36
Fixed in
  • f3a557067d57ce6ae98d485c8009b223e16f5f36
LinuxLinuxAffected
  • ≥ ba5c1e9b6ceebdc39343cc03eb39f077abd3c571, < 7a33007b95c8908ae3980eb2b4c508f8936766df
Fixed in
  • 7a33007b95c8908ae3980eb2b4c508f8936766df
LinuxLinuxAffected
  • =2.6.26
Fixed in–

Description

A vulnerability identified as CVE-2026-98652 affects Microsoft products, specifically versions 3.0 and 4.0. The issue relates to the KVM s390 architecture where a missing SRCU (Sleepable Read-Copy Update) mechanism in the function kvm_s390_set_irq_state() was discovered. No CVSS score or detailed impact information is provided, and no known exploits are reported in the wild.

References

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