wifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config

{
  "id": "9e60c09f69b9a218225ab28979affa3a8a419e9f0014153ed1fc16605a2b48c4",
  "url": "https://osv.dev/vulnerability/CVE-2026-90370",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config The response TLV loop advanced by tlv->len without a minimum, so a theoretical firmware response containing a zero-length TLV could spin forever, hanging the CPU during device probe. The u32 payload was also read without bounds checking. Reject a short fixed field, stop on a TLV whose length underruns the header or overruns the skb.",
    "evidence": "osv:CVE-2026-90370",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.157",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.52",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-90370",
      "aliases": [
        "CVE-2026-90370"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5d33053be609abfcfa9f5ca75d5554f2109aa40b"
                },
                {
                  "fixed": "3106f62809d45c1e6aadfad1f4d7c3f74cd53a96"
                },
                {
                  "fixed": "39aa6b853b6d69dd1fee3507efdb3c277b7c53e6"
                },
                {
                  "fixed": "d0bb2189ade617e624f3c8f444ebb05f59bb2524"
                },
                {
                  "fixed": "93eaddfdd35aa6bfe570c087db4e97fb9d8a791a"
                },
                {
                  "fixed": "44af52467e72094351a362bf69effd52f1d9c186"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90370.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.3.0"
                },
                {
                  "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"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90370.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.407977801Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3106f62809d45c1e6aadfad1f4d7c3f74cd53a96",
        "https://git.kernel.org/stable/c/39aa6b853b6d69dd1fee3507efdb3c277b7c53e6",
        "https://git.kernel.org/stable/c/44af52467e72094351a362bf69effd52f1d9c186",
        "https://git.kernel.org/stable/c/93eaddfdd35aa6bfe570c087db4e97fb9d8a791a",
        "https://git.kernel.org/stable/c/d0bb2189ade617e624f3c8f444ebb05f59bb2524",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90370.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90370",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90370.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90370",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 504874,
  "published_at": "2026-09-17T16:09:11.398+00:00"
}