fkie_cve-2024-47739
Vulnerability from fkie_nvd
Published
2024-10-21 13:15
Modified
2024-10-23 16:58
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: padata: use integer wrap around to prevent deadlock on seq_nr overflow When submitting more than 2^32 padata objects to padata_do_serial, the current sorting implementation incorrectly sorts padata objects with overflowed seq_nr, causing them to be placed before existing objects in the reorder list. This leads to a deadlock in the serialization process as padata_find_next cannot match padata->seq_nr and pd->processed because the padata instance with overflowed seq_nr will be selected next. To fix this, we use an unsigned integer wrap around to correctly sort padata objects in scenarios with integer overflow.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b8cf11b3ca593a8802a51802cd0c28c38501428Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1bd712de96ad7167fe0d608e706cd60587579f16Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/46c4079460f4dcaf445860679558eedef4e1bc91Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/72164d5b648951684b1a593996b37a6083c61d7dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9a22b2812393d93d84358a760c347c21939029a6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9e279e6c1f012b82628b89e1b9c65dbefa8ca25aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab205e1c3846326f162180e56825b4ba38ce9c30Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npadata: use integer wrap around to prevent deadlock on seq_nr overflow\n\nWhen submitting more than 2^32 padata objects to padata_do_serial, the\ncurrent sorting implementation incorrectly sorts padata objects with\noverflowed seq_nr, causing them to be placed before existing objects in\nthe reorder list. This leads to a deadlock in the serialization process\nas padata_find_next cannot match padata-\u003eseq_nr and pd-\u003eprocessed\nbecause the padata instance with overflowed seq_nr will be selected\nnext.\n\nTo fix this, we use an unsigned integer wrap around to correctly sort\npadata objects in scenarios with integer overflow."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: padata: usar un envoltorio de enteros para evitar un bloqueo en el desbordamiento de seq_nr Al enviar m\u00e1s de 2^32 objetos padata a padata_do_serial, la implementaci\u00f3n de clasificaci\u00f3n actual ordena incorrectamente los objetos padata con seq_nr desbordado, lo que hace que se coloquen antes de los objetos existentes en la lista de reordenamiento. Esto conduce a un bloqueo en el proceso de serializaci\u00f3n ya que padata_find_next no puede coincidir con padata-\u0026gt;seq_nr y pd-\u0026gt;processed porque la instancia de padata con seq_nr desbordado se seleccionar\u00e1 a continuaci\u00f3n. Para solucionar esto, usamos un envoltorio de enteros sin signo para ordenar correctamente los objetos padata en escenarios con desbordamiento de enteros."
    }
  ],
  "id": "CVE-2024-47739",
  "lastModified": "2024-10-23T16:58:37.707",
  "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": "2024-10-21T13:15:04.017",
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  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "CWE-190"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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