CVE-2023-53664 (GCVE-0-2023-53664)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:21 – Updated: 2026-05-11 19:49
VLAI
Title
OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate()
Summary
In the Linux kernel, the following vulnerability has been resolved: OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate() "opp" pointer is dereferenced before the IS_ERR_OR_NULL() check. Fix it by removing the dereference to cache opp_table and dereference it directly where opp_table is used. This fixes the following smatch warning: drivers/opp/core.c:232 dev_pm_opp_get_required_pstate() warn: variable dereferenced before IS_ERR check 'opp' (see line 230)
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6820 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 84cb7ff35fcf7c0b552f553a3f2db9c3e92fc707 , < 25130b27e0352acb83e91c467853eb9afad3b644 (git)
Affected: 84cb7ff35fcf7c0b552f553a3f2db9c3e92fc707 , < 7ddd8deb1c3c0363a7e14fafb5df26e2089a69a5 (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.5.3 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nOPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate()\n\n\"opp\" pointer is dereferenced before the IS_ERR_OR_NULL() check. Fix it by\nremoving the dereference to cache opp_table and dereference it directly\nwhere opp_table is used.\n\nThis fixes the following smatch warning:\n\ndrivers/opp/core.c:232 dev_pm_opp_get_required_pstate() warn: variable\ndereferenced before IS_ERR check \u0027opp\u0027 (see line 230)"
        }
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      "providerMetadata": {
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        {
          "url": "https://git.kernel.org/stable/c/7ddd8deb1c3c0363a7e14fafb5df26e2089a69a5"
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    "assignerShortName": "Linux",
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    "datePublished": "2025-10-07T15:21:23.127Z",
    "dateReserved": "2025-10-07T15:16:59.662Z",
    "dateUpdated": "2026-05-11T19:49:31.878Z",
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        "descriptions": [
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nOPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate()\n\n\"opp\" pointer is dereferenced before the IS_ERR_OR_NULL() check. Fix it by\nremoving the dereference to cache opp_table and dereference it directly\nwhere opp_table is used.\n\nThis fixes the following smatch warning:\n\ndrivers/opp/core.c:232 dev_pm_opp_get_required_pstate() warn: variable\ndereferenced before IS_ERR check \u0027opp\u0027 (see line 230)"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nOPP: Corrige una posible desreferencia de puntero nulo en dev_pm_opp_get_required_pstate()\n\nEl puntero \u2019opp\u2019 es desreferenciado antes de la comprobaci\u00f3n IS_ERR_OR_NULL(). Corr\u00edgelo al eliminar la desreferencia para almacenar en cach\u00e9 opp_table y desreferenciarlo directamente donde se usa opp_table.\n\nEsto corrige la siguiente advertencia de smatch:\n\ndrivers/opp/core.c:232 dev_pm_opp_get_required_pstate() advertencia: variable desreferenciada antes de la comprobaci\u00f3n IS_ERR \u2019opp\u2019 (ver l\u00ednea 230)"
          }
        ],
        "id": "CVE-2023-53664",
        "lastModified": "2026-10-28T20:10:00.163",
        "metrics": {
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                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
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              "source": "nvd@nist.gov",
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        "references": [
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        "vulnStatus": "Analyzed",
        "weaknesses": [
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              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
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      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:39:56+00:00",
      "cve": "CVE-2023-53664",
      "id": "CVE-2023-53664",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "279",
      "product_status:known_affected": "22",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53664.json",
      "version": "3"
    }
  }
}



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