{
  "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-2026-64425",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64425",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-25T08:51:03.036Z",
    "updatedAt": "2026-10-15T01:23:50.155Z",
    "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": "io_uring/io-wq: re-check IO_WQ_BIT_EXIT for each linked work item",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/io-wq: re-check IO_WQ_BIT_EXIT for each linked work item\n\ncommit 10dc95939817 (\"io_uring/io-wq: check IO_WQ_BIT_EXIT inside work\nrun loop\") fixed the obvious case where io_worker_handle_work() took one\nexit-bit snapshot before draining pending work, but the fix stops one\nlevel too early.\n\nio_worker_handle_work() now re-checks IO_WQ_BIT_EXIT in its outer work\nrun loop, yet it still snapshots that bit once before processing a whole\ndependent linked-work chain. If io_wq_exit_start() sets IO_WQ_BIT_EXIT\nafter the first linked item has started, the remaining linked items can\nstill reuse stale do_kill = false, skip IO_WQ_WORK_CANCEL, and continue\nrunning after exit has begun.\n\nMove the check further inside, so it covers linked items too. Note: this\nis a syzbot special as it loves setting up tons of slow linked work on\nweird devices like msr that take forever to read, and immediately close\nthe ring. Exit then takes a long time.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "065dd936195a3466b8ebe5f9287400987ee3c063",
              "status": "affected",
              "versionType": "git",
              "lessThan": "14b7ecad2ec56699325180a744f4b19f046401bb"
            },
            {
              "version": "27e47500fac23d15b7dc93ff650bc4844d2581bd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d179533c610e1b4c6aa436e3c1fd1b719d2c727c"
            },
            {
              "version": "d05d99573f81a091547b1778b9a50120f5d6c68a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6e2f51f3e06773c2ee98ad09738f0908b48f76f9"
            },
            {
              "version": "85eb83694a91c89d9abe615d717c0053c3efa714",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ea61b04e1d7242cb37f5ed2cc91cf21a493f6597"
            },
            {
              "version": "2e8ca1078b14142db2ce51cbd18ff9971560046b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b6f179a653a934736c88d820fe0098c3c2532549"
            },
            {
              "version": "bdf0bf73006ea8af9327cdb85cfdff4c23a5f966",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1636d85dc139b07c0449308f2bb5e0c7a2e0da99"
            },
            {
              "version": "10dc959398175736e495f71c771f8641e1ca1907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ab85765cbe3258b43dc6729af0e6ce3a87a133d8"
            },
            {
              "version": "10dc959398175736e495f71c771f8641e1ca1907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "29bef9934b2521f787bb15dd1985d4c0d12ae02a"
            },
            {
              "version": "5.10.253",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.261"
            },
            {
              "version": "5.15.203",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.212"
            },
            {
              "version": "6.1.167",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.178"
            },
            {
              "version": "6.6.122",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.145"
            },
            {
              "version": "6.12.68",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.96"
            },
            {
              "version": "6.18.8",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18.39"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.19"
            },
            {
              "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": "6.12.96",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.39",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}