CVE-2026-64442

Status: UPDATED  |  Advisory ID: CVE-2026-64442

Key Details

Affected Products, Subsystems & Sectors

What to Know

In the Linux kernel, the following vulnerability has been resolved:

staging: rtl8723bs: fix OOB reads in IE loops in issue_assocreq() and join_cmd_hdl()

Two IE parsing loops are missing the header bounds checks before they

dereference pIE->length:

- issue_assocreq() walks pmlmeinfo->network.ies to build the

association request. If the stored IE data ends with only an

element_id byte and no length byte, pIE->length is read one byte

past the end of the buffer.

- join_cmd_hdl() walks pnetwork->ies during station join and has

the same problem under the same conditions.

Both buffers are filled from AP beacon and probe-response frames, so a

malicious AP that sends a truncated final IE can trigger the issue.

Apply the two-guard pattern established in update_beacon_info():

1. Break if fewer than sizeof(*pIE) bytes remain.

2. Break if the IE's declared data extends past the buffer end. (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References