{"id":"CVE-2026-90349","revision":"03c3a70b6e7a4a7b80db721750cb0fd1","records":[{"revision":"03c3a70b6e7a4a7b80db721750cb0fd1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90349","aliases":[],"title":"wifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()\n\nWhen mac80211 leaves the link unspecified, mt7996_tx() substitutes the\nprimary link id of the station or vif. That value is\nIEEE80211_LINK_UNSPECIFIED (0xf) until the first link has been added,\nand it is then used unchecked to index vif->link_conf[],\nmvif->mt76.link[] and sta->link[], all of which hold\nIEEE80211_MLD_MAX_NUM_LINKS (15) entries.\n\nClamp the primary link id to the default link before using it, and use\nthe clamped value for the link_sta fallback as well.","state":0,"publishedAt":"2026-09-17T16:08:57.539+00:00","modifiedAt":"2026-10-19T09:02:06.019+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/mediatek/mt76/mt7996/main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"1609b014aa29f9a2bf3aaa93f71de4a06725845e\",\n                            \"lessThan\": \"637bb99cc766a858d744905e46638459ca128b6c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1609b014aa29f9a2bf3aaa93f71de4a06725845e\",\n                            \"lessThan\": \"aff81505a84d27f83b4db8e039e813930cb23c2c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1609b014aa29f9a2bf3aaa93f71de4a06725845e\",\n                            \"lessThan\": \"4330a0ef9f75a54fde3548432a9a698f06bab635\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/mediatek/mt76/mt7996/main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/637bb99cc766a858d744905e46638459ca128b6c","https://git.kernel.org/stable/c/aff81505a84d27f83b4db8e039e813930cb23c2c","https://git.kernel.org/stable/c/4330a0ef9f75a54fde3548432a9a698f06bab635"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90349","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90349","identifiers":["CVE-2026-90349"]},"retained":false,"historicalAffected":[]}],"coverage":[]}