CVE-2024-27077: media: v4l2-mem2mem: fix a memleak in v4l2_m2m_register_entity

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-01 · updated 2026-10-15
Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-mem2mem: fix a memleak in v4l2_m2m_register_entity The entity->name (i.e. name) is allocated in v4l2_m2m_register_entity but isn't freed in its following error-handling paths. This patch adds such deallocation to prevent memleak of entity->name.

Affected products

Debian Linux: 10.0
Linux kernel: from 4.19 before 4.19.311; from 4.20 before 5.4.273; from 5.5 before 5.10.214; from 5.11 before 5.15.153; from 5.16 before 6.1.83; from 6.2 before 6.6.23 — fixed in 4.19.311, 5.10.214, 5.15.153, 5.4.273, 6.1.83, 6.6.23

How to fix

Upgrade to a fixed version: Linux kernel 4.19.311, 5.10.214, 5.15.153, 5.4.273. Check the vendor advisory for mitigations.

References

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