fkie_cve-2024-36887
Vulnerability from fkie_nvd
Published
2024-05-30 16:15
Modified
2025-09-18 14:37
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: e1000e: change usleep_range to udelay in PHY mdic access This is a partial revert of commit 6dbdd4de0362 ("e1000e: Workaround for sporadic MDI error on Meteor Lake systems"). The referenced commit used usleep_range inside the PHY access routines, which are sometimes called from an atomic context. This can lead to a kernel panic in some scenarios, such as cable disconnection and reconnection on vPro systems. Solve this by changing the usleep_range calls back to udelay.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/387f295cb2150ed164905b648d76dfcbd3621778Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/950d5226cd6bb83ba720961a8d4d5cf79e6afd57Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f8a139656c95db893a543159873c57a470d7376dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/387f295cb2150ed164905b648d76dfcbd3621778Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/950d5226cd6bb83ba720961a8d4d5cf79e6afd57Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f8a139656c95db893a543159873c57a470d7376dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ne1000e: change usleep_range to udelay in PHY mdic access\n\nThis is a partial revert of commit 6dbdd4de0362 (\"e1000e: Workaround\nfor sporadic MDI error on Meteor Lake systems\"). The referenced commit\nused usleep_range inside the PHY access routines, which are sometimes\ncalled from an atomic context. This can lead to a kernel panic in some\nscenarios, such as cable disconnection and reconnection on vPro systems.\n\nSolve this by changing the usleep_range calls back to udelay."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: e1000e: cambie usleep_range a udelay en el acceso mdic de PHY. Esta es una reversi\u00f3n parcial de el commit 6dbdd4de0362 (\"e1000e: soluci\u00f3n alternativa para errores MDI espor\u00e1dicos en sistemas Meteor Lake\"). El commit a la que se hace referencia us\u00f3 usleep_range dentro de las rutinas de acceso PHY, que a veces se llaman desde un contexto at\u00f3mico. Esto puede provocar un p\u00e1nico en el kernel en algunos escenarios, como la desconexi\u00f3n y reconexi\u00f3n de cables en sistemas vPro. Resuelva esto volviendo a cambiar las llamadas usleep_range a udelay."
    }
  ],
  "id": "CVE-2024-36887",
  "lastModified": "2025-09-18T14:37:53.773",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2024-05-30T16:15:12.243",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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