SB2026050987 - Improper resource shutdown or release in Linux kernel chips-media wave5 driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-43301)

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

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown handling in the wave5 media driver remove path when removing the device after autosuspend has suspended it. A local user can trigger device removal to cause a denial of service.

The issue occurs because the runtime PM usage count can underflow during module unload when the device is already suspended.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/0bffda02317989f8d5cdc2d4462a4110b1290cf0
• https://git.kernel.org/stable/c/3a278a55ead50db2444c8f01410c7f5a68723990
• https://git.kernel.org/stable/c/9cf4452e824c1e2d41c9c0b13cc8a32a0a7dec38