KVM: s390: Fix memory leak in guest debug handling
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Partial Red Hat: 5 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bp_data is freed only for the error case by kfree(bp_data). Every successful KVM_SET_GUEST_DEBUG will leak bp_data.
Why it matters now
EPSS 0.00216 12th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.270, 5.15.221, 6.1.188 +5Red Hat: 5 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5, 7.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89925
- 2026-10-03 Alias added: GHSA-xj9r-76p8-pxqw
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/39e7cebb889839b5762c9ad22e2d715b5883b288
- https://git.kernel.org/stable/c/58b1b729a9f90c80b508fc3e2174cbc0ee50859e
- https://git.kernel.org/stable/c/9071f75cbde3bf46119cb28e92cfbef830c4bf97
- https://git.kernel.org/stable/c/5940418e4232a2ff1d30ba12e0d213dbf48f0a83
- https://git.kernel.org/stable/c/fc2034c431adcbaabf5f8a01912358f07355349e
- https://git.kernel.org/stable/c/44bf3792c10f4bb3de507391f1837e020d92eaa2
- https://git.kernel.org/stable/c/581be9f6085834188cef1ad2f07babf3b421e409
- https://git.kernel.org/stable/c/121ea1de927c8b9bfdf53c31cad27b86d5de0293
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Sources
- CVE-2026-89925 · CVE Program
- CVE-2026-89925 · NVD
- FIRST EPSS
- GHSA-xj9r-76p8-pxqw · GitHub Advisory Database · CC BY 4.0
- CVE-2026-89925 · Red Hat security data · CC BY 4.0
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