SB20260917102 - Missing Release of Resource after Effective Lifetime in Linux kernel chips-media wave5 driver

Description

This security bulletin contains information about 1 vulnerability.

1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-89867)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a missing release of a shared v4l2_m2m job slot in wave5_vpu_dec_device_run() when a queued decoder job runs after the instance enters the STOP state during draining. A local user can queue a decoder job that runs after the decoder enters the STOP state to cause a denial of service.

The condition affects decoder instances sharing a VPU during end-of-stream handling.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/63d758d2f9dba836d5ae597d317cde522e817cf9
• https://git.kernel.org/stable/c/b694ba0a5526a69f78a6924982b1553154ccfd73