wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif

{
  "id": "2f218aaabc6e5398d923200b1ad4a30171fb5c1622a8f5aca4f3af8c972c2be8",
  "url": "https://osv.dev/vulnerability/CVE-2026-93790",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif mvmsta->tid_data was indexed by the TFD loop counter 'i' instead of the actual TID value 'tid'. This writes lq_color into a random tid_data slot unrelated to the BA entry. Since multi-TID blockack is not really in use, 'i' was always 0 and no harm was done. Add a out-of-bound check before accessing the array.",
    "evidence": "osv:CVE-2026-93790",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.191",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.158",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.111",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.53",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-93790",
      "aliases": [
        "CVE-2026-93790"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "41fd2fec56db2564f02532ed7244e1f69193b4ad"
                },
                {
                  "fixed": "ed9869e64dd7a397a320ae7a37f1e4a36f866f74"
                },
                {
                  "fixed": "35f991d685feafd27255bd33272512c434e52527"
                },
                {
                  "fixed": "c48b741277b01b2c3b4ecccedc72fc575b71dc04"
                },
                {
                  "fixed": "e8ac5e91b1296f65c3d119fac3fa917ff458f811"
                },
                {
                  "fixed": "94d3982806c7f194b23484befde12934dda23064"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93790.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.15.0"
                },
                {
                  "fixed": "6.1.191"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.158"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.111"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.53"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93790.json"
          }
        }
      ],
      "modified": "2026-11-01T02:30:31.412971295Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/35f991d685feafd27255bd33272512c434e52527",
        "https://git.kernel.org/stable/c/94d3982806c7f194b23484befde12934dda23064",
        "https://git.kernel.org/stable/c/c48b741277b01b2c3b4ecccedc72fc575b71dc04",
        "https://git.kernel.org/stable/c/e8ac5e91b1296f65c3d119fac3fa917ff458f811",
        "https://git.kernel.org/stable/c/ed9869e64dd7a397a320ae7a37f1e4a36f866f74",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93790.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93790",
        "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/2026/93xxx/CVE-2026-93790.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-93790",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497392,
  "published_at": "2026-09-24T16:02:24.091+00:00"
}