{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-98600",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98600",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-18T15:19:12.864Z",
    "updatedAt": "2026-10-19T09:22:26.711Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Bluetooth: RFCOMM: Reject short EA=0 frames in rfcomm_recv_frame()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: Reject short EA=0 frames in rfcomm_recv_frame()\n\nWhile rfcomm_recv_frame() verifies that skb->len is at least\nsizeof(*hdr) + 1 (4 bytes: 3-byte header + 1-byte FCS), an RFCOMM frame\nwith an extended 2-byte length field (!__test_ea(hdr->len)) has a 4-byte\nheader plus a 1-byte FCS (5 bytes minimum, sizeof(*hdr) + 2).\n\nWhen a 4-byte RFCOMM frame with EA == 0 arrives:\n1. The initial skb->len < sizeof(*hdr) + 1 check passes (4 < 4 is false).\n2. Trimming the FCS byte decrements skb->len to 3.\n3. If __check_fcs() succeeds, skb_pull(skb, 4) fails (4 > 3) and returns\n   NULL without advancing skb->data.\n4. Because the return value of skb_pull() is ignored, the un-pulled\n   3-byte struct rfcomm_hdr remains at skb->data and is either queued as\n   application payload via rfcomm_recv_data() or parsed as a multiplexer\n   control command via rfcomm_recv_mcc() on DLCI 0.\n\nFix this by extending the length check in rfcomm_recv_frame() to also\nrequire skb->len >= sizeof(*hdr) + 2 when !__test_ea(hdr->len).",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fb40eda15122f6b780228639c1ead6820340ff54",
              "status": "affected",
              "versionType": "git",
              "lessThan": "76876fd26569302d26d91cbe8b75fa8e66cf8969"
            },
            {
              "version": "3829af5fab5a22405bf1e7d69068c2ec0fce46ca",
              "status": "affected",
              "versionType": "git",
              "lessThan": "97711b964877242933484989224a3c4c5d88a5ee"
            },
            {
              "version": "b161eacd7fa4a2d765724b5504ac6cc388e48f80",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7a1781a2f3a9667b3065d402d1f11986a2363e08"
            },
            {
              "version": "30d1d9f3495463f7c026e4c553127f79b486fcd6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c25587fa26761e623198b4f47151fe79d09ccde6"
            },
            {
              "version": "67dc3b40fae71b6b11c71e7ff69bac0758818c05",
              "status": "affected",
              "versionType": "git",
              "lessThan": "71ccacde407b7d8f0ef48974a0d2524602fd5c44"
            },
            {
              "version": "bbc310caa2b6bf5fe42896ba27da0fbc12e4ac51",
              "status": "affected",
              "versionType": "git",
              "lessThan": "be00deee60044ffa820f9436415caeb665b2cda0"
            },
            {
              "version": "b230e5bf501c5edaf2eb0991cb862ac142031d4b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9240fc1f2cde5331c61608da21b00394602ca762"
            },
            {
              "version": "b230e5bf501c5edaf2eb0991cb862ac142031d4b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6d91041bb38b97e2feb625123cc0529d7b83a0e1"
            },
            {
              "version": "6.12.111",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.112"
            },
            {
              "version": "6.18.53",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18.55"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "7.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "7.2"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.55",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}