{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "bdcd81707973cf8aa9305337166f8ee842a050d4"
            },
            {
              "fixed": "d4558c140782180e2c80a7588a4af9f8675adfc4"
            },
            {
              "fixed": "5a65fd4722416061698b0a3277222381efbc4882"
            },
            {
              "fixed": "58c6c8dc2e022e1b4f3dc58725a1ca49ff470f9c"
            },
            {
              "fixed": "cec0a487cf38ac1f9bca240ffe8a94c5014b72f2"
            },
            {
              "fixed": "44126b6994eeb28f2103b638e698f40a1244f327"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.2.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68199.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath6kl: fix OOB access from firmware ADDBA window size\n\naggr_recv_addba_req_evt() logs a debug message when the firmware-supplied\nwin_sz is outside [AGGR_WIN_SZ_MIN, AGGR_WIN_SZ_MAX] but does not\nreturn. The out-of-range win_sz is then used in TID_WINDOW_SZ() to\ncompute a kzalloc size and stored in rxtid-\u003ehold_q_sz, leading to\nzero-size or overflowed allocations and subsequent out-of-bounds access.\n\nClean up any previously active aggregation session for the TID first,\nthen return early when win_sz is out of the valid range, instead of\nproceeding with a broken allocation size.",
  "id": "CVE-2026-68199",
  "modified": "2026-08-15T11:31:01.254502341Z",
  "published": "2026-08-10T12:00:18.278Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44126b6994eeb28f2103b638e698f40a1244f327"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/58c6c8dc2e022e1b4f3dc58725a1ca49ff470f9c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a65fd4722416061698b0a3277222381efbc4882"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cec0a487cf38ac1f9bca240ffe8a94c5014b72f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4558c140782180e2c80a7588a4af9f8675adfc4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68199.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68199"
    },
    {
      "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:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "wifi: ath6kl: fix OOB access from firmware ADDBA window size"
}