{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1609b014aa29f9a2bf3aaa93f71de4a06725845e"
            },
            {
              "fixed": "637bb99cc766a858d744905e46638459ca128b6c"
            },
            {
              "fixed": "aff81505a84d27f83b4db8e039e813930cb23c2c"
            },
            {
              "fixed": "4330a0ef9f75a54fde3548432a9a698f06bab635"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90349.json"
  },
  "details": "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-\u003elink_conf[],\nmvif-\u003emt76.link[] and sta-\u003elink[], 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.",
  "id": "CVE-2026-90349",
  "modified": "2026-09-19T03:30:29.450809583Z",
  "published": "2026-09-17T16:08:57.539Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4330a0ef9f75a54fde3548432a9a698f06bab635"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/637bb99cc766a858d744905e46638459ca128b6c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aff81505a84d27f83b4db8e039e813930cb23c2c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90349.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90349"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()"
}