{
  "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-2026-89951",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89951",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-16T10:32:36.179Z",
    "updatedAt": "2026-10-19T08:55:25.323Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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: fix stale receive device on merged fragments",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: fix stale receive device on merged fragments\n\nFragment reassembly reuses the skb from the highest-numbered buffered\nfragment as the merged packet. When that fragment was received on a hard\ninterface which is deleted before the chain completes, the merged skb can\nre-enter the receive path with a stale skb->dev and skb_iif.\n\nbatadv_batman_skb_recv() passes such merged packets through the normal\nreceive handlers again. DAT and bridge loop avoidance both derive the ARP\nheader length from skb->dev, so they can dereference the freed net_device\nbefore the packet reaches the local mesh interface.\n\nRefresh the receive device metadata from the current receive device before\nrunning the packet handlers. This keeps internally reinjected merged\nfragments consistent with the normal receive path after hard interface\nteardown.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "610bfc6bc99bc83680d190ebc69359a05fc7f605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "63d86250fa7cbe22451369bd1c0881dfc8190958"
            },
            {
              "version": "610bfc6bc99bc83680d190ebc69359a05fc7f605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f830c2dfc1431764db9256b3d5db1695fc9a7f56"
            },
            {
              "version": "610bfc6bc99bc83680d190ebc69359a05fc7f605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f4b4ae763b5d59319fad62a00c76676758e7dafa"
            },
            {
              "version": "610bfc6bc99bc83680d190ebc69359a05fc7f605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6df64825f8b199921120c685af2abca14b077331"
            },
            {
              "version": "610bfc6bc99bc83680d190ebc69359a05fc7f605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a2c272da99c2077088083c14961cf2f1e4506995"
            },
            {
              "version": "610bfc6bc99bc83680d190ebc69359a05fc7f605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e91d2cc7441d89a45bad73ad9789159c7441cb80"
            },
            {
              "version": "610bfc6bc99bc83680d190ebc69359a05fc7f605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2dffc8c44b6e3347b3719c6419c07b4a18fea895"
            },
            {
              "version": "610bfc6bc99bc83680d190ebc69359a05fc7f605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ad46c907d7d9975a285c1e89a4adde652eaa93f5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.13"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.51",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}