{
  "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-2026-52954",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-52954",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-24T16:28:36.992Z",
    "updatedAt": "2026-10-19T19:47:09.795Z",
    "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": "libceph: handle rbtree insertion error in decode_choose_args()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: handle rbtree insertion error in decode_choose_args()\n\nA message of type CEPH_MSG_OSD_MAP contains an OSD map that itself\ncontains a CRUSH map. The received CRUSH map may optionally contain\nchoose_args that get decoded in decode_choose_args(). In this function,\nnum_choose_arg_maps is read from the message, and a corresponding number\nof crush_choose_arg_maps gets decoded afterwards. Each\ncrush_choose_arg_map has a choose_args_index, which serves as the key\nwhen inserting it into the choose_args rbtree of the decoded crush_map.\nIf a (potentially corrupted) message contains two crush_choose_arg_maps\nwith the same index, the assertion in insert_choose_arg_map() triggers a\nkernel BUG when trying to insert the second crush_choose_arg_map.\n\nThis patch fixes the issue by switching to the non-asserting rbtree\ninsertion function and rejecting the message if the insertion fails.\n\n[ idryomov: changelog ]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c7bf7864e2924fa5508ac270b0e9364bc13d5a6c"
            },
            {
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f47430fc1f815e87406e2d3b4e476eff1bc7fd9b"
            },
            {
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0b6a3bcb91bc5bfeda39f0df3b71bab62c13e9da"
            },
            {
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "534ebc08df97c47d4c7596f336fa31ecbf91519c"
            },
            {
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "80c73bd1b2b04355d1d0c29be8ccbd25a380905d"
            },
            {
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4d2b37abda9536808655830d683dc491d31741a8"
            },
            {
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0a1265a9ab875f92b6a3ffb497404f46cf9d76a3"
            },
            {
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d289478cfc0bcf81c7914200d6abdcb78bd04ded"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.13"
            },
            {
              "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": "6.6.141",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.91",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.33",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}