{"id":"CVE-2026-74324","summary":"wifi: mt76: mt7925: validate skb length in testmode query","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: validate skb length in testmode query\n\nIn mt7925_tm_query(), the response skb from mt76_mcu_send_and_get_msg()\nis used in a memcpy without validating its length:\n\n  memcpy(evt_resp, skb-\u003edata + 8, MT7925_EVT_RSP_LEN);\n\nwhere MT7925_EVT_RSP_LEN is 512. If the firmware returns a response\nshorter than 520 bytes (8 + 512), this reads beyond the skb data\nbuffer. The over-read data is then returned to userspace via nla_put()\nin mt7925_testmode_dump().\n\nAdd a length check before the memcpy to ensure the skb contains\nsufficient data.","modified":"2026-08-18T03:31:22.790101194Z","published":"2026-08-15T05:58:19.518Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74324.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/c386e90a7ce8ddec9f038e9437661a2821b0ce89"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c7369a00860a0704461d440e7c3bf9b49bfdbaee"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e8b214b6d6e1902025452db0a0af73dc9693e4ba"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74324.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74324"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c948b5da6bbec742b433138e3e3f9537a85af2e5"},{"fixed":"c386e90a7ce8ddec9f038e9437661a2821b0ce89"},{"fixed":"e8b214b6d6e1902025452db0a0af73dc9693e4ba"},{"fixed":"c7369a00860a0704461d440e7c3bf9b49bfdbaee"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74324.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74324.json"}}],"schema_version":"1.9.0"}