{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "396939f94084d5923d558e9f22db48bc51156e47"
            },
            {
              "fixed": "e1770f7410b4232a0267924f99751dc9c5ca31af"
            },
            {
              "fixed": "8c2058717fd06f05d421c2d3adf1dff3c3abcda1"
            },
            {
              "fixed": "fba7eb7b248ea0618235f504158b685d752a153a"
            },
            {
              "fixed": "eb42c3c8fd479166c42984728754cd779c71fd60"
            },
            {
              "fixed": "45011e4d9ba3f2182e5df64be65888044fa20771"
            },
            {
              "fixed": "9375a4ea4121625ef27a46b74781cda66a5cc61b"
            },
            {
              "fixed": "cca4398aa305c22016d1714f388e2fa6ea4e5ad4"
            },
            {
              "fixed": "c3d68e294cbb6a4090bb219d3dcaca85a011809b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.16.0"
            },
            {
              "fixed": "5.10.265"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.216"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "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-2026-68197.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper\n\nmwifiex_tdls_add_ht_oper() gates its follow-the-AP-bandwidth path on\nbss_desc-\u003ebcn_ht_cap being present, but then dereferences a different\npointer, bss_desc-\u003ebcn_ht_oper:\n\n\tif (ISSUPP_CHANWIDTH40(priv-\u003eadapter-\u003ehw_dot_11n_dev_cap) \u0026\u0026\n\t    bss_desc-\u003ebcn_ht_cap \u0026\u0026\n\t    ISALLOWED_CHANWIDTH40(bss_desc-\u003ebcn_ht_oper-\u003eht_param))\n\nbcn_ht_cap and bcn_ht_oper are populated independently while parsing the\nassociated AP's beacon in mwifiex_update_bss_desc_with_ie(): an AP that\nadvertises an HT Capabilities element but no HT Operation element leaves\nbcn_ht_cap non-NULL and bcn_ht_oper NULL. Setting up a TDLS link to a\npeer while associated to such an AP then dereferences the NULL\nbcn_ht_oper and crashes the kernel. Every other bcn_ht_oper user in the\ndriver NULL-checks it first.\n\nGuard on the pointer that is actually dereferenced.\n\nFound by 0sec automated security-research tooling (https://0sec.ai).",
  "id": "CVE-2026-68197",
  "modified": "2026-08-21T03:30:08.609433348Z",
  "published": "2026-08-10T12:00:15.750Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45011e4d9ba3f2182e5df64be65888044fa20771"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c2058717fd06f05d421c2d3adf1dff3c3abcda1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9375a4ea4121625ef27a46b74781cda66a5cc61b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c3d68e294cbb6a4090bb219d3dcaca85a011809b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cca4398aa305c22016d1714f388e2fa6ea4e5ad4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e1770f7410b4232a0267924f99751dc9c5ca31af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb42c3c8fd479166c42984728754cd779c71fd60"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fba7eb7b248ea0618235f504158b685d752a153a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68197.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68197"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper"
}