{
  "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-2026-31683",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31683",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-25T08:47:00.334Z",
    "updatedAt": "2026-08-05T12:24:28.913Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "batman-adv: avoid OGM aggregation when skb tailroom is insufficient",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: avoid OGM aggregation when skb tailroom is insufficient\n\nWhen OGM aggregation state is toggled at runtime, an existing forwarded\npacket may have been allocated with only packet_len bytes, while a later\npacket can still be selected for aggregation. Appending in this case can\nhit skb_put overflow conditions.\n\nReject aggregation when the target skb tailroom cannot accommodate the new\npacket. The caller then falls back to creating a new forward packet\ninstead of appending.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "67176c96f325837b0bb3e9538ca2eba414f447d8"
            },
            {
              "version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0b10a8b355c3f71012ce89289ec2c2f5e3bfd6c1"
            },
            {
              "version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6755347c5f9bdd44dee80f692208b056fcd40a52"
            },
            {
              "version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1ada20331f2df2a942d6b83ae1f04a304b642e2a"
            },
            {
              "version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6e40ebb999c2c3d2fbb3cacb61f0384ee6e69075"
            },
            {
              "version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0e35db29fc5a97a8553f7c2d3a2ba730e46b1ee8"
            },
            {
              "version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eda89a1bae0602aec8314ced299bb243b9f9aeef"
            },
            {
              "version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d4aef630be9d5f9c1227d07669c26c4383b5ad0"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.38",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.38"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.167",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.78",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.20",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}