{
  "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-2026-98623",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98623",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-18T15:19:44.744Z",
    "updatedAt": "2026-10-19T09:22:51.359Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "drm/nouveau/clk: fix list cursor use after loop in nvkm_clk_ustate_update",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/clk: fix list cursor use after loop in nvkm_clk_ustate_update\n\nIf list_for_each_entry() exits without hitting a break then \"pstate\" is\nnot a valid pstate pointer.  Introduce a \"found\" variable instead.\n\nThe check is reachable from userspace: nvkm_clk_ustate_update() takes the\npstate id straight from the 'pstate' debugfs file, so requesting an id\nthat is not in clk->states - or any id at all when the perf tables are\nbroken and the list is empty - makes the pstate->pstate != req test\ndereference the list head cast to a struct nvkm_pstate, which is an\nout-of-bounds read.\n\n[Francesco: rebased on drm-misc-next, expanded the commit message]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7c856522069755ab9d163a24ac332cd3cb35fe30",
              "status": "affected",
              "versionType": "git",
              "lessThan": "db5dd9f47b4df1be322f498d846e9a82940a7390"
            },
            {
              "version": "7c856522069755ab9d163a24ac332cd3cb35fe30",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d550924961f61a491dd95359c63494fa8a23d9f"
            },
            {
              "version": "7c856522069755ab9d163a24ac332cd3cb35fe30",
              "status": "affected",
              "versionType": "git",
              "lessThan": "492e9cfa12f35f7946ea1b78a19f1f9337d62248"
            },
            {
              "version": "7c856522069755ab9d163a24ac332cd3cb35fe30",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a867abcfa85ab487066c3d3008a1ba905da04113"
            },
            {
              "version": "7c856522069755ab9d163a24ac332cd3cb35fe30",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5315c7bacfe274ddfe649d9556e9a341ffa812da"
            },
            {
              "version": "7c856522069755ab9d163a24ac332cd3cb35fe30",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d096a7f7d79207490858dde731b16da5337e90c"
            },
            {
              "version": "7c856522069755ab9d163a24ac332cd3cb35fe30",
              "status": "affected",
              "versionType": "git",
              "lessThan": "391517da7fd54ae40e4a7fe1cc696217343b0061"
            },
            {
              "version": "7c856522069755ab9d163a24ac332cd3cb35fe30",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aff09d9e37e02dc60bde79035ac15b136d602259"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.13"
            },
            {
              "version": "5.10.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.222",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.55",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}