fkie_cve-2024-46846
Vulnerability from fkie_nvd
Published
2024-09-27 13:15
Modified
2024-10-08 18:25
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: spi: rockchip: Resolve unbalanced runtime PM / system PM handling Commit e882575efc77 ("spi: rockchip: Suspend and resume the bus during NOIRQ_SYSTEM_SLEEP_PM ops") stopped respecting runtime PM status and simply disabled clocks unconditionally when suspending the system. This causes problems when the device is already runtime suspended when we go to sleep -- in which case we double-disable clocks and produce a WARNing. Switch back to pm_runtime_force_{suspend,resume}(), because that still seems like the right thing to do, and the aforementioned commit makes no explanation why it stopped using it. Also, refactor some of the resume() error handling, because it's not actually a good idea to re-disable clocks on failure.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0efbad8445fbba7896402500a1473450a299a08aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14f970a8d03d882b15b97beb83bd84ac8ba6298cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be721b451affbecc4ba4eaac3b71cdbdcade1b1bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d034bff62faea1a2219e0d2f3d17263265f24087Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: rockchip: Resolve unbalanced runtime PM / system PM handling\n\nCommit e882575efc77 (\"spi: rockchip: Suspend and resume the bus during\nNOIRQ_SYSTEM_SLEEP_PM ops\") stopped respecting runtime PM status and\nsimply disabled clocks unconditionally when suspending the system. This\ncauses problems when the device is already runtime suspended when we go\nto sleep -- in which case we double-disable clocks and produce a\nWARNing.\n\nSwitch back to pm_runtime_force_{suspend,resume}(), because that still\nseems like the right thing to do, and the aforementioned commit makes no\nexplanation why it stopped using it.\n\nAlso, refactor some of the resume() error handling, because it\u0027s not\nactually a good idea to re-disable clocks on failure."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: rockchip: Resolver el manejo desequilibrado de PM en tiempo de ejecuci\u00f3n / PM del sistema el commit e882575efc77 (\"spi: rockchip: Suspender y reanudar el bus durante las operaciones NOIRQ_SYSTEM_SLEEP_PM\") dej\u00f3 de respetar el estado de PM en tiempo de ejecuci\u00f3n y simplemente deshabilit\u00f3 los relojes incondicionalmente al suspender el sistema. Esto causa problemas cuando el dispositivo ya est\u00e1 suspendido en tiempo de ejecuci\u00f3n cuando nos vamos a dormir, en cuyo caso deshabilitamos dos veces los relojes y generamos una ADVERTENCIA. Vuelva a pm_runtime_force_{suspend,resume}(), porque eso todav\u00eda parece lo correcto y el commit mencionado anteriormente no explica por qu\u00e9 dej\u00f3 de usarlo. Adem\u00e1s, refactorice parte del manejo de errores de resume(), porque en realidad no es una buena idea volver a deshabilitar los relojes en caso de falla."
    }
  ],
  "id": "CVE-2024-46846",
  "lastModified": "2024-10-08T18:25:56.467",
  "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"
      }
    ]
  },
  "published": "2024-09-27T13:15:16.480",
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    {
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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