CVE-2026-74324

Technical Description

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

wifi: mt76: mt7925: validate skb length in testmode query

In mt7925_tm_query(), the response skb from mt76_mcu_send_and_get_msg()

is used in a memcpy without validating its length:

memcpy(evt_resp, skb->data + 8, MT7925_EVT_RSP_LEN);

where MT7925_EVT_RSP_LEN is 512. If the firmware returns a response

shorter than 520 bytes (8 + 512), this reads beyond the skb data

buffer. The over-read data is then returned to userspace via nla_put()

in mt7925_testmode_dump().

Add a length check before the memcpy to ensure the skb contains

sufficient data.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References