Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c948b5da6bbec742b433138e3e3f9537a85af2e5 before c386e90a7ce8ddec9f038e9437661a2821b0ce89; affected c948b5da6bbec742b433138e3e3f9537a85af2e5 before e8b214b6d6e1902025452db0a0af73dc9693e4ba; affected c948b5da6bbec742b433138e3e3f9537a85af2e5 before c7369a00860a0704461d440e7c3bf9b49bfdbaee |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.