CVE-2026-98346 (GCVE-0-2026-98346)
Vulnerability from cvelistv5
Published
2026-10-06 08:46
Modified
2026-10-19 09:17
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: don't get the radio mask for netdev-less wdevs cfg80211_calculate_bi_data() calls rdev_get_radio_mask() with wdev->netdev, which can be NULL and then crashes in mac80211. To avoid that, invert the order of checks since wdev->netdev is always valid for beaconing interfaces.
References
Impacted products
Vendor Product Version
Linux Linux Version: abb4cfe3661aa05426916b21164f88ca5a405a3a
Version: abb4cfe3661aa05426916b21164f88ca5a405a3a
Version: abb4cfe3661aa05426916b21164f88ca5a405a3a
Version: abb4cfe3661aa05426916b21164f88ca5a405a3a
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/util.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5b313159c970e945ee125ca87fad0d96ed913e55",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "693d777846d525b8b218bad97a1befa5d9bd4334",
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              "versionType": "git"
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              "versionType": "git"
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              "versionType": "git"
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          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/util.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.112",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.54",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.8",
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: don\u0027t get the radio mask for netdev-less wdevs\n\ncfg80211_calculate_bi_data() calls rdev_get_radio_mask() with\nwdev-\u003enetdev, which can be NULL and then crashes in mac80211.\n\nTo avoid that, invert the order of checks since wdev-\u003enetdev\nis always valid for beaconing interfaces."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:17:57.199Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5b313159c970e945ee125ca87fad0d96ed913e55"
        },
        {
          "url": "https://git.kernel.org/stable/c/693d777846d525b8b218bad97a1befa5d9bd4334"
        },
        {
          "url": "https://git.kernel.org/stable/c/7166da84a7fe3553f9065782fd80299a37b150e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/a7783e585360ee05dfe21d3173dbbe985c94f29e"
        }
      ],
      "title": "wifi: cfg80211: don\u0027t get the radio mask for netdev-less wdevs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98346",
    "datePublished": "2026-10-06T08:46:35.409Z",
    "dateReserved": "2026-09-25T10:25:14.343Z",
    "dateUpdated": "2026-10-19T09:17:57.199Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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