{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "89029a85482cbcf68026a89fc974e8f6898d6b37"
            },
            {
              "fixed": "2801477c36a19be4f549fe60e54995f03b0ea7b9"
            },
            {
              "fixed": "38f4d6323bcd65e41a691432eddabd2b03acdeee"
            },
            {
              "fixed": "25f753f7f620955a8a51e63e445d8b9076c51396"
            },
            {
              "fixed": "e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6"
            },
            {
              "fixed": "85bd46ab7674b6d357f9a14791352c65fb09eee9"
            },
            {
              "fixed": "6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7"
            },
            {
              "fixed": "ecfd1a07e78c31d81322fb2d81dc468081cc3004"
            },
            {
              "fixed": "4a2f4be532e3ea4e2b536e411793a05aaa51af25"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.8.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "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-2026-90372.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss\n\nIf a peer's VHT/HE MCS map has no supported spatial stream (all fields\n0x3), the loop exits with nss == 0 and the function returned (u8)-1 (255),\nwhich was then written into the firmware sta_rec_bf beamforming fields.\nClamp the result to 0.",
  "id": "CVE-2026-90372",
  "modified": "2026-09-20T11:30:17.524184990Z",
  "published": "2026-09-17T16:09:12.733Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25f753f7f620955a8a51e63e445d8b9076c51396"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2801477c36a19be4f549fe60e54995f03b0ea7b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38f4d6323bcd65e41a691432eddabd2b03acdeee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a2f4be532e3ea4e2b536e411793a05aaa51af25"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85bd46ab7674b6d357f9a14791352c65fb09eee9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecfd1a07e78c31d81322fb2d81dc468081cc3004"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90372.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90372"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss"
}