{
  "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-2026-72068",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72068",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:52:21.007Z",
    "updatedAt": "2026-08-17T05:07:35.943Z",
    "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": "posix-cpu-timers: Use u64 multiplication in update_rlimit_cpu()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nposix-cpu-timers: Use u64 multiplication in update_rlimit_cpu()\n\nupdate_rlimit_cpu() converts the RLIMIT_CPU value to nanoseconds with\n\n        u64 nsecs = rlim_new * NSEC_PER_SEC;\n\nOn 32-bit kernels both rlim_new (unsigned long) and NSEC_PER_SEC\n(1000000000L) are 32-bit, so the multiplication is performed in unsigned\nlong and truncated for rlim_new > 4 seconds before being widened to u64.\n\nThe same file already casts to u64 for the matching computation in\ncheck_process_timers():\n\n        u64 softns = (u64)soft * NSEC_PER_SEC;\n\nAs a result, the truncated value is installed into the CPUCLOCK_PROF\nexpiry cache (nextevt), causing the process CPU timer to be programmed\nto fire prematurely for any RLIMIT_CPU soft limit >= 5 seconds. The\nactual SIGXCPU/SIGKILL decision in check_process_timers() already casts\nto u64 and is therefore correct, so limit enforcement is not broken;\nonly the expiry-cache programming is wrong. Apply the same cast here so\nboth paths convert rlim_cur identically.\n\n64-bit kernels are unaffected.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "feb5c87c8514444ba891b75a5a3eae57c64edaf8"
            },
            {
              "version": "858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "384628d6cdde0fcd76868606fad3ad8293100afb"
            },
            {
              "version": "858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1fafc4d9b411645eb34de43362b966dc8fb3e263"
            },
            {
              "version": "858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cff8281bacd2866767e6194c3079d33b6c5a74f4"
            },
            {
              "version": "858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "edf6babb9edd2d3e19229ade339081f439d4f478"
            },
            {
              "version": "858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ea6a188ee805e841a0e242f14d15953e0dfa74bb"
            },
            {
              "version": "858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "571e1f10b5996ba3e4dc63ea77de4aa309c384ce"
            },
            {
              "version": "858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "26aff38fefb1d6cd87e22525f41cc8f1aa61b24f"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.11"
            },
            {
              "version": "5.10.261",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.97",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}