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CVE-2026-43231: media: radio-keene: fix memory leak in error path

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-06 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: media: radio-keene: fix memory leak in error path Fix a memory leak in usb_keene_probe(). The v4l2 control handler is initialized and controls are added, but if v4l2_device_register() or video_register_device() fails afterward, the handler was never freed, leaking memory. Add v4l2_ctrl_handler_free() call in the err_v4l2 error path to ensure the control handler is properly freed for all error paths after it is initialized.

Affected products

• Linux kernel: from 3.4 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16 — fixed in 5.10.252, 5.15.202, 6.1.165, 6.12.75, 6.18.16, 6.19.6

How to fix

Upgrade to a fixed version: Linux kernel 5.10.252, 5.15.202, 6.1.165, 6.12.75. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1d8558a232ecb187e8e0328d6347a125f437a0fc
• https://git.kernel.org/stable/c/242b0aabb1866024a7995a767ac330c158b39aa4
• https://git.kernel.org/stable/c/27c508f61963013fdf29097578284099ee7a85a4
• https://git.kernel.org/stable/c/2fe28a63d598235595a9601e0d8fdc7c8f4fd575
• https://git.kernel.org/stable/c/7fa9754f48cb8eefa566156be341e63d313247e5
• https://git.kernel.org/stable/c/ad85bb5623079a35bd400f51de2e2fbc2170bdb2
• https://git.kernel.org/stable/c/b8bf939d77c0cd01118e953bbf554e0fa15e9006
• https://git.kernel.org/stable/c/de204d87e7d61859937272fe30cbdd46a4cfb10a

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