What’s Vulnerable › Vulnerabilities

CVE-2026-89872: media: v4l2-fwnode: Fix fwnode leak in v4l2_fwnode_parse_link

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-16 · updated 2026-10-19

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.]

Affected products

• Linux kernel: 4.13 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3ced388b7908270529e5aa6d221840114b6c33bc
• https://git.kernel.org/stable/c/578c4bfa28bf21458ecdde2fd3fc429475f34c10
• https://git.kernel.org/stable/c/881aafb139520570fd3390bf9938d7098b7fbb99
• https://git.kernel.org/stable/c/a6e86efd7f85e519bf48417f41923f8bd51f1597
• 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

Get alerted when CVE-2026-89872 or the next vulnerability affects your stack