SB20260918112 - Improper resource shutdown or release in Linux kernel media v4l2-core driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-93101)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows an attacker with physical access to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in v4l2_async_unregister_subdev() when disconnecting a susceptible em28xx USB device. An attacker with physical access can disconnect the USB device to cause a denial of service.

The issue occurs when a tvp5150 I2C sub-device is registered through means other than v4l2-async and its asynchronous connection list is empty.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/4e72f13d58c4245c177a9d5f54579345554f354d
• https://git.kernel.org/stable/c/65e55f34fb2d61cb4f8a5dfcb93848af2aea0f32
• https://git.kernel.org/stable/c/9fb74dce5c650cb23b60f6ba0ffcd5024e948a75
• https://git.kernel.org/stable/c/c7201bd08cad791858337e33ffcd90d8ae4147c2
• https://git.kernel.org/stable/c/e190320cebe921f99973c984ac53f317061a011f