CVE-2026-23246 (GCVE-0-2026-23246)

Vulnerability from cvelistv5 – Published: 2026-03-18 10:05 – Updated: 2026-03-25 10:20
VLAI?
Title
wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration link_id is taken from the ML Reconfiguration element (control & 0x000f), so it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS (15) elements, so index 15 is out-of-bounds. Skip subelements with link_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds write.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c , < 650981e718e68005ca2760a6358134b8a98ebea4 (git)
Affected: 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c , < bfde158d5d1322c0c2df398a8d1ccce04943be2e (git)
Affected: 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c , < f35ceec54d48e227fa46f8f97fd100a77b8eab15 (git)
Affected: 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c , < d58d71c2167601762351962b9604808d3be94400 (git)
Affected: 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c , < 162d331d833dc73a3e905a24c44dd33732af1fc5 (git)
Create a notification for this product.
    Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc2 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "650981e718e68005ca2760a6358134b8a98ebea4",
              "status": "affected",
              "version": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
              "versionType": "git"
            },
            {
              "lessThan": "bfde158d5d1322c0c2df398a8d1ccce04943be2e",
              "status": "affected",
              "version": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
              "versionType": "git"
            },
            {
              "lessThan": "f35ceec54d48e227fa46f8f97fd100a77b8eab15",
              "status": "affected",
              "version": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
              "versionType": "git"
            },
            {
              "lessThan": "d58d71c2167601762351962b9604808d3be94400",
              "status": "affected",
              "version": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
              "versionType": "git"
            },
            {
              "lessThan": "162d331d833dc73a3e905a24c44dd33732af1fc5",
              "status": "affected",
              "version": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
            {
              "lessThan": "6.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.130",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.77",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0-rc2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.130",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.77",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.17",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.7",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0-rc2",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration\n\nlink_id is taken from the ML Reconfiguration element (control \u0026 0x000f),\nso it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS\n(15) elements, so index 15 is out-of-bounds. Skip subelements with\nlink_id \u003e= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds\nwrite."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-25T10:20:35.053Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/650981e718e68005ca2760a6358134b8a98ebea4"
        },
        {
          "url": "https://git.kernel.org/stable/c/bfde158d5d1322c0c2df398a8d1ccce04943be2e"
        },
        {
          "url": "https://git.kernel.org/stable/c/f35ceec54d48e227fa46f8f97fd100a77b8eab15"
        },
        {
          "url": "https://git.kernel.org/stable/c/d58d71c2167601762351962b9604808d3be94400"
        },
        {
          "url": "https://git.kernel.org/stable/c/162d331d833dc73a3e905a24c44dd33732af1fc5"
        }
      ],
      "title": "wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23246",
    "datePublished": "2026-03-18T10:05:08.312Z",
    "dateReserved": "2026-01-13T15:37:45.989Z",
    "dateUpdated": "2026-03-25T10:20:35.053Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23246\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-03-18T11:16:16.570\",\"lastModified\":\"2026-03-25T11:16:20.583\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration\\n\\nlink_id is taken from the ML Reconfiguration element (control \u0026 0x000f),\\nso it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS\\n(15) elements, so index 15 is out-of-bounds. Skip subelements with\\nlink_id \u003e= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds\\nwrite.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\nwifi: mac80211: verificaci\u00f3n de l\u00edmites de link_id en ieee80211_ml_reconfiguration\\n\\nlink_id se toma del elemento de reconfiguraci\u00f3n ML (control \u0026amp; 0x000f), por lo que puede ser 0..15. link_removal_timeout[] tiene IEEE80211_MLD_MAX_NUM_LINKS (15) elementos, por lo que el \u00edndice 15 est\u00e1 fuera de los l\u00edmites. Omitir subelementos con link_id \u0026gt;= IEEE80211_MLD_MAX_NUM_LINKS para evitar una escritura fuera de los l\u00edmites de la pila.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/162d331d833dc73a3e905a24c44dd33732af1fc5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/650981e718e68005ca2760a6358134b8a98ebea4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bfde158d5d1322c0c2df398a8d1ccce04943be2e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d58d71c2167601762351962b9604808d3be94400\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f35ceec54d48e227fa46f8f97fd100a77b8eab15\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.