# drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read

CVE record · `CVE-2026-93179`

- **Identifiers:** `CVE-2026-93179`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:12 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `c82baa28184356a75c0157129f88af42b2e7b695 to before ed84504713e8357f33693f638fda68fc98f0c9d2` (git)
  - affected: `c82baa28184356a75c0157129f88af42b2e7b695 to before 86644d37d2b388854b2cfd4d4f57b3d84a57154b` (git)
  - affected: `c82baa28184356a75c0157129f88af42b2e7b695 to before e5b3c485ef911358752a3abbf3705d05d0eafd7a` (git)
  - affected: `c82baa28184356a75c0157129f88af42b2e7b695 to before 574af7c61f2bed37baa3b60669e428d24d2c9ae8` (git)
  - affected: `c82baa28184356a75c0157129f88af42b2e7b695 to before 203ffe648948ca3c2f55b21118945a7a6d0884aa` (git)
  - affected: `c82baa28184356a75c0157129f88af42b2e7b695 to before 0a6c9b3801903b6db91f3cbf148646b501dbded3` (git)
  - affected: `c82baa28184356a75c0157129f88af42b2e7b695 to before 83c680de6d41d627c077dedb24f89d9e5be0e2a2` (git)
  - affected: `c82baa28184356a75c0157129f88af42b2e7b695 to before 5d3cc8e388464f485d0944b87b8f9426e637d082` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.5`
  - unaffected: `before 4.5` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel's amdgpu powerplay driver (drm/amd/powerplay) is affected from version 4.5 until fixed. A malformed VoltageObjectInfo table supplied by the VBIOS can cause an infinite loop or a heap out-of-bounds read. Upgrade to 5.10.273, 5.15.224, 6.1.191, or 6.6.160 or later in the matching series.

Written 12 Nov 2026.

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0022, the 12th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93179](https://www.cve.org/CVERecord?id=CVE-2026-93179)
- [NVD: CVE-2026-93179](https://nvd.nist.gov/vuln/detail/CVE-2026-93179)

### References from the CNA

- <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>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-93179>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93179/>. Everything for agents: <https://agentprime.io/llms.txt>.