SB2026072782 - Use-after-free in Linux kernel codecs side-codecs

Description

This security bulletin contains information about 1 vulnerability.

1) Use-after-free (CVE-ID: CVE-2026-64481)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [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]

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

The vulnerability exists due to a use-after-free in the cs35l41_hda firmware load work and ALSA control handling when a firmware load is requested and queued work executes after component unbind or device removal. A local user can trigger a firmware load request and remove the component or device before the queued work runs to cause a denial of service.

Exploitation requires firmware autostart to be disabled and can occur before DSP initialization.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/8947215c0136c9d905e4a46d824824f8b48a2e5b
• https://git.kernel.org/stable/c/b65020d5398f499c09498c9786dba6d67ae57664
• https://git.kernel.org/stable/c/ce0a903d0591e3e2c790c5b628802b08d1b287cc
• https://git.kernel.org/stable/c/d6a40a4d083ef74d00c8f9516cb5ff07ac70720b