{
  "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-2026-52919",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-52919",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-24T07:14:15.201Z",
    "updatedAt": "2026-08-05T12:31:41.245Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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 tp_meter counter underflow during shutdown",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: fix tp_meter counter underflow during shutdown\n\nbatadv_tp_sender_shutdown() unconditionally decrements the \"sending\"\natomic counter. If multiple paths (e.g. timeout, user cancel, and\nnormal finish) call this function, the counter can underflow to -1.\n\nSince the sender logic treats any non-zero value as \"still sending\",\na negative value causes the sender kthread to loop indefinitely.\nThis leads to a use-after-free when the interface is removed while\nthe zombie thread is still active.\n\nFix this by using atomic_xchg() to ensure the counter only transitions\nfrom 1 to 0 once.\n\n[sven: added missing change in batadv_tp_send]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e75e2ab463b5b34df6b98f94d740aff327ce9f6b"
            },
            {
              "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "abae88fa254f2981d39ac003a7b302528a22af64"
            },
            {
              "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c66d20a3ff095e3f000551d208ec2606616db15c"
            },
            {
              "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c1bac194733aabd731aafa6a01350c229e187dba"
            },
            {
              "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "01cefc5923889e29dbb5f281c3d457714ceb9c00"
            },
            {
              "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "90ae3eae06b7b8ab9f6250b9497c860915b4c17b"
            },
            {
              "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aeae11c5dad9cd0d50723890bdd866f8e6db2e7d"
            },
            {
              "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "94f3b133168d1c49895e7cc6afbcf1cc0b354602"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.8"
            },
            {
              "version": "5.10.258",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.142",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.92",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.34",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}