SB2026081590 - Improper control of a resource through its lifetime in Linux kernel ath ath12k driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-74367)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

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 improper state management in ath12k_mac_vdev_create() when handling vdev creation error paths. A local user can trigger vdev creation failures to cause a denial of service.

The issue affects cleanup after failures in WMI vdev creation and peer deletion handling, leaving internal ath12k state inconsistent.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/c972636efc63f0f43d725b59805dd1ae5bc4b31e
• https://git.kernel.org/stable/c/e0140e094b196d92f2a4ce167ee73cbfab000290