SB2026091320 - Expired pointer dereference in Linux kernel marvell mwifiex driver

Description

This security bulletin contains information about 1 vulnerability.

1) Expired pointer dereference (CVE-ID: CVE-2026-80944)

CWE-ID: CWE-825 - Expired pointer dereference

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 an expired pointer dereference in the mwifiex synchronous command response handler when a synchronous command wait is interrupted before a late firmware response is processed. A local user can interrupt a synchronous command wait to cause a denial of service.

The issue was observed during repeated association and disassociation cycles.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/20ee9c03f261bf6ac59331e2ca7b46b23646412a
• https://git.kernel.org/stable/c/b1bbeb8970eeb6c6bf3cd5314138103f7b69446d
• https://git.kernel.org/stable/c/d29a165588b6a0cf7a38db5cbd602aef7ef8c658
• https://git.kernel.org/stable/c/ef06882c7d8a7400b67d0d003b1008093dd589ed