drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 6 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: drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read Reject voltage objects whose usSize is smaller than the header or would advance the cursor past the table end, preventing an infinite loop or heap OOB read when the VBIOS supplies a malformed VoltageObjectInfo table.
Why it matters now
EPSS 0.00217 12th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.273, 5.15.224, 6.1.191 +5Red Hat: 6 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 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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 6 | Affected | No fix planned: Out of support scope |
| 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: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93179
- 2026-10-03 Alias added: GHSA-636p-hq8h-v2cp
- 2026-10-11 Fix available: Linux/Linux@0a6c9b3801903b6db91f3cbf148646b501dbded3, Linux/[email protected] · CNA
- 2026-10-11 1 new reference · CNA
- 2026-10-16 Fix available: Linux/Linux@203ffe648948ca3c2f55b21118945a7a6d0884aa, Linux/[email protected] · CNA
- 2026-10-16 1 new reference · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Affected versions changed · Red Hat
- 2026-10-21 CVSS score added · Red Hat
- 2026-10-21 Fix available: Linux/Linux@574af7c61f2bed37baa3b60669e428d24d2c9ae8, Linux/[email protected] · CNA
- 2026-10-21 1 new reference · CNA
- 2026-10-30 Fix available: Linux/[email protected], Linux/[email protected], Linux/[email protected] +3 · CNA
- 2026-10-30 3 new references · CNA
- 2026-11-01 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/ed84504713e8357f33693f638fda68fc98f0c9d2
- https://git.kernel.org/stable/c/86644d37d2b388854b2cfd4d4f57b3d84a57154b
- https://git.kernel.org/stable/c/e5b3c485ef911358752a3abbf3705d05d0eafd7a
- https://git.kernel.org/stable/c/574af7c61f2bed37baa3b60669e428d24d2c9ae8
- https://git.kernel.org/stable/c/203ffe648948ca3c2f55b21118945a7a6d0884aa
- https://git.kernel.org/stable/c/0a6c9b3801903b6db91f3cbf148646b501dbded3
- https://git.kernel.org/stable/c/83c680de6d41d627c077dedb24f89d9e5be0e2a2
- https://git.kernel.org/stable/c/5d3cc8e388464f485d0944b87b8f9426e637d082
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Sources
- CVE-2026-93179 · CVE Program
- CVE-2026-93179 · NVD
- FIRST EPSS
- GHSA-636p-hq8h-v2cp · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93179 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences