{
  "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-2026-68156",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68156",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-10T11:59:22.514Z",
    "updatedAt": "2026-10-19T20:58:54.796Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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: refresh auth->authorizer_buf{,_len} after authorizer update",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: refresh auth->authorizer_buf{,_len} after authorizer update\n\nceph_x_create_authorizer() caches au->buf->vec.iov_base and\nau->buf->vec.iov_len in struct ceph_auth_handshake.  These\ncached values are then used by the messenger connect code when\nsending the authorizer.\n\nceph_x_update_authorizer() can rebuild the authorizer when a newer\nservice ticket is available.  If the rebuilt authorizer no longer\nfits in the existing buffer, ceph_x_build_authorizer() drops its\nreference to au->buf and allocates a new one.  If this is the final\nreference, ceph_buffer_put() frees the old ceph_buffer and its\nvec.iov_base, but auth->authorizer_buf still points at that freed\nmemory.\n\nA subsequent msgr1 reconnect can therefore queue the stale pointer\nand trigger a KASAN slab-use-after-free in _copy_from_iter() while\ntcp_sendmsg() copies the authorizer.\n\nRefresh auth->authorizer_buf and auth->authorizer_buf_len after a\nsuccessful authorizer rebuild so the messenger sends the current\nbuffer.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0bed9b5c523d577378b6f83eab5835fe30c27208",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2334e9997308305ee4fd508fdfe6086c4150ed60"
            },
            {
              "version": "0bed9b5c523d577378b6f83eab5835fe30c27208",
              "status": "affected",
              "versionType": "git",
              "lessThan": "79a273df64238a4ade8b709689a78589f755b8ef"
            },
            {
              "version": "0bed9b5c523d577378b6f83eab5835fe30c27208",
              "status": "affected",
              "versionType": "git",
              "lessThan": "26f814187abceee90dbb29a02133adb4786fbb13"
            },
            {
              "version": "0bed9b5c523d577378b6f83eab5835fe30c27208",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d37aec9ffe4e743dabc3f84502e9723e17a30d4"
            },
            {
              "version": "0bed9b5c523d577378b6f83eab5835fe30c27208",
              "status": "affected",
              "versionType": "git",
              "lessThan": "75e82e8944ac1efe9fdb88bd2f14d9a031282bdf"
            },
            {
              "version": "0bed9b5c523d577378b6f83eab5835fe30c27208",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0060ec912292a550198d8d18ac95b433c92a7091"
            },
            {
              "version": "0bed9b5c523d577378b6f83eab5835fe30c27208",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5ecfcd5c05866f185357700b81b461dae4f5ebb2"
            },
            {
              "version": "0bed9b5c523d577378b6f83eab5835fe30c27208",
              "status": "affected",
              "versionType": "git",
              "lessThan": "937d61f86d377a3aa578adae7a3dfcecdddf9d89"
            },
            {
              "version": "29c65a277a64645af853e8c9a9b3dda0ddc421e0",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "d2c7223497cf8228416c70e3f4238ddd6c5bdf3c",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "3.4.50",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.5"
            },
            {
              "version": "3.9.7",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.10"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.10"
            },
            {
              "version": "5.10.265",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.216",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.183",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.148",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}