{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3"
            },
            {
              "fixed": "20c308d9a57722801961f816395bf825f7bde6bc"
            },
            {
              "fixed": "84bd907361c56fbd5523eceb2682cb39da059bd5"
            },
            {
              "fixed": "11ac7a5e75f5132f1778e0c60981d30dc29fb869"
            },
            {
              "fixed": "ddf2773bcc8e49a43c561f22ec1e7924215d7947"
            },
            {
              "fixed": "cb8afea4655ff004fa7feee825d5c79783525383"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.2.0"
            },
            {
              "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-2026-68402.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: bound element ID read when checking non-inheritance\n\ncfg80211_is_element_inherited() reads the first data octet of the\ncandidate element (id = elem-\u003edata[0]) to look it up in an extension\nnon-inheritance list. It does so after testing elem-\u003eid, but without\nverifying that the element actually has a data octet. A zero-length\nextension element (WLAN_EID_EXTENSION with length 0) therefore makes it\nread one octet past the end of the element.\n\n_ieee802_11_parse_elems_full() runs this check for every element of a\nframe once a non-inheritance context exists -- e.g. while parsing a\nper-STA profile of a Multi-Link element in a (re)association response,\nor a non-transmitted BSS profile -- so a crafted frame from an AP can\ntrigger a one-octet slab-out-of-bounds read during element parsing:\n\n  BUG: KASAN: slab-out-of-bounds in cfg80211_is_element_inherited\n  Read of size 1 ... in net/wireless/scan.c\n\nReturn early (treat the element as inherited) when an extension element\ncarries no data, mirroring the existing handling of empty ID lists.\n\nThe bug was found by fuzzing ieee802_11_parse_elems_full() under KASAN.",
  "id": "CVE-2026-68402",
  "modified": "2026-08-12T03:51:31.863674068Z",
  "published": "2026-08-10T12:04:22.113Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/11ac7a5e75f5132f1778e0c60981d30dc29fb869"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/20c308d9a57722801961f816395bf825f7bde6bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84bd907361c56fbd5523eceb2682cb39da059bd5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb8afea4655ff004fa7feee825d5c79783525383"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ddf2773bcc8e49a43c561f22ec1e7924215d7947"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68402.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68402"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: cfg80211: bound element ID read when checking non-inheritance"
}