{
  "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-2026-80777",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80777",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-04T15:12:49.215Z",
    "updatedAt": "2026-10-19T08:43:32.707Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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": "futex/pi: Plug private futex exec() race",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nfutex/pi: Plug private futex exec() race\n\nThe check for private futexes whether the waiter's mm, which is stored in\nthe futex_key and copied into the pi_state, is the same as the owner's mm\nis not sufficient for exec(). exec() has a gap where the mm check fails to\ngive the correct answer:\n\n  exec()\n  ...\n    exec_release_mm()\n      futex_exec_release()\n        tsk::futex::exit_state = EXITING;\n        cleanup_robust_list();\n1)      tsk::futex::exit_state = OK;\n    ...\n    old_mm = tsk::mm;\n2)  tsk::mm = ->mm;\n\nBetween #1 and #2 the check for the mm is wrong as that mm is about to be\nswapped out and eventually freed.\n\nPlug this gap by:\n\n  1) Setting tsk::futex::exit_state to FUTEX_STATE_DEAD in\n     futex_exec_release()\n\n  2) Setting tsk::futex::exit_state to FUTEX_STATE_OK after\n     the mm has been switched.\n\nFrom a futex point of view the task is dead after it finished the robust\nlist cleanup up to the point where it sets the state to OK again.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "80367ad01d93ac781b0e1df246edaf006928002f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fdf538b2e69653ff740e84042245018e5680cd7b"
            },
            {
              "version": "80367ad01d93ac781b0e1df246edaf006928002f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0478bc6bf197629fea0331d65b39eeea043c6cf0"
            },
            {
              "version": "80367ad01d93ac781b0e1df246edaf006928002f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d7944cee62ec6cca1c90780a766960a57d3b4bb8"
            },
            {
              "version": "80367ad01d93ac781b0e1df246edaf006928002f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c5f0bc9fd1cec4a00400cc727fcde03e0fde17cc"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.16"
            },
            {
              "version": "6.18.47",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}