fkie_cve-2022-49731
Vulnerability from fkie_nvd
Published
2025-02-26 07:01
Modified
2025-03-07 20:46
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: ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() In an unlikely (and probably wrong?) case that the 'ppi' parameter of ata_host_alloc_pinfo() points to an array starting with a NULL pointer, there's going to be a kernel oops as the 'pi' local variable won't get reassigned from the initial value of NULL. Initialize 'pi' instead to '&ata_dummy_port_info' to fix the possible kernel oops for good... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07cbdb4807d369fbda73062a91b570c4dc5ec429Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ac5efee33f29e704226506d429b84575a5d66f8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/253334f84c81bc6a43af489f108c0bddad989eefPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36cd19e7d4e5571d77a2ed20c5b6ef50cf57734aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a810bd5af06977a847d1f202b22d7defd5c62497Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf476fe22aa1851bab4728e0c49025a6a0bea307Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ca4693e6e06e4fd2b240c0fec47aa2498c94848ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff128fbea720bf763fa345680dda5f050bc24a47Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.19


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()\n\nIn an unlikely (and probably wrong?) case that the \u0027ppi\u0027 parameter of\nata_host_alloc_pinfo() points to an array starting with a NULL pointer,\nthere\u0027s going to be a kernel oops as the \u0027pi\u0027 local variable won\u0027t get\nreassigned from the initial value of NULL. Initialize \u0027pi\u0027 instead to\n\u0027\u0026ata_dummy_port_info\u0027 to fix the possible kernel oops for good...\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() En un caso improbable (\u00bfy probablemente err\u00f3neo?) de que el par\u00e1metro \u0027ppi\u0027 de ata_host_alloc_pinfo() apunte a una matriz que comience con un puntero NULL, habr\u00e1 un error en el kernel ya que la variable local \u0027pi\u0027 no se reasignar\u00e1 desde el valor inicial de NULL. Inicialice \u0027pi\u0027 en su lugar a \u0027\u0026amp;ata_dummy_port_info\u0027 para corregir el posible error en el kernel para siempre... Encontrado por Linux Verification Center (linuxtesting.org) con la herramienta de an\u00e1lisis est\u00e1tico SVACE. "
    }
  ],
  "id": "CVE-2022-49731",
  "lastModified": "2025-03-07T20:46:01.040",
  "metrics": {
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        "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": "2025-02-26T07:01:48.710",
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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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  ]
}


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