CVE-2026-98700 (GCVE-0-2026-98700)
Vulnerability from cvelistv5
Published
2026-10-18 15:46
Modified
2026-10-30 12:38
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: set info->band for 802.3 encap offload frames Unlike the 802.11 TX paths, ieee80211_8023_xmit() does not set info->band from the channel context on non-MLD interfaces. It stays at 0, so ieee80211_get_tx_rates() uses the wrong band for these frames. Set it the same way as ieee80211_build_hdr(): drop the frame if there is no channel context, and leave the band at 0 on MLD interfaces.
References
Impacted products
Vendor Product Version
Linux Linux Version: 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec
Version: 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec
Version: 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec
Version: 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec
Version: 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec
Version: 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec
Version: 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec
Version: 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec
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{
  "containers": {
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          "defaultStatus": "unaffected",
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          "programFiles": [
            "net/mac80211/tx.c"
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              "version": "0",
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: set info-\u003eband for 802.3 encap offload frames\n\nUnlike the 802.11 TX paths, ieee80211_8023_xmit() does not set\ninfo-\u003eband from the channel context on non-MLD interfaces. It stays at\n0, so ieee80211_get_tx_rates() uses the wrong band for these frames.\n\nSet it the same way as ieee80211_build_hdr(): drop the frame if there is\nno channel context, and leave the band at 0 on MLD interfaces."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:38:51.724Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a182c0bbb3c0332189f04b241a71455539f58433"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ce62fa18975316547c971cf60c4533077a60c48"
        },
        {
          "url": "https://git.kernel.org/stable/c/c85c0d897b91c74c0a2c0d0ad29f1ae970dc1e0d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6535f7084d95873785a7a93cdca05e8ee83b5601"
        },
        {
          "url": "https://git.kernel.org/stable/c/93c1b247224a32f546b616a8fe87b9bab20f0a7f"
        },
        {
          "url": "https://git.kernel.org/stable/c/9cedbfde1450028f530e9af950f53491fcaebfeb"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d9c5525bbc1a548cdc9c4def3cd7fbfc7c66b5b"
        },
        {
          "url": "https://git.kernel.org/stable/c/4febc02cd02f021f2b6d0768332be643ef14a12d"
        }
      ],
      "title": "wifi: mac80211: set info-\u003eband for 802.3 encap offload frames",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98700",
    "datePublished": "2026-10-18T15:46:30.043Z",
    "dateReserved": "2026-09-25T10:25:14.365Z",
    "dateUpdated": "2026-10-30T12:38:51.724Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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