fkie_cve-2022-49780
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-11-07 17:47
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: scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus() If device_register() fails in tcm_loop_setup_hba_bus(), the name allocated by dev_set_name() need be freed. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So fix this by calling put_device(), then the name can be freed in kobject_cleanup(). The 'tl_hba' will be freed in tcm_loop_release_adapter(), so it don't need goto error label in this case.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28f7ff5e7559d226e63c7c5de74eb075a83d8c53Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/41a6b8b527a5957fab41c3c05e25ad125268e2e9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75205f1b47a88c3fac4f30bd7567e89b2887c7fdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a636772988bafab89278e7bb3420d8e8eacfe912Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bc68e428d4963af0201e92159629ab96948f0893Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dce0589a3faec9e2e543e97bca7e62592ec85585Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus()\n\nIf device_register() fails in tcm_loop_setup_hba_bus(), the name allocated\nby dev_set_name() need be freed. As comment of device_register() says, it\nshould use put_device() to give up the reference in the error path. So fix\nthis by calling put_device(), then the name can be freed in kobject_cleanup().\nThe \u0027tl_hba\u0027 will be freed in tcm_loop_release_adapter(), so it don\u0027t need\ngoto error label in this case."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: target: tcm_loop: Se corrige una posible fuga de nombre en tcm_loop_setup_hba_bus(). Si device_register() falla en tcm_loop_setup_hba_bus(), se debe liberar el nombre asignado por dev_set_name(). Como se indica en el comentario de device_register(), se debe usar put_device() para liberar la referencia en la ruta de error. Para solucionar esto, se debe llamar a put_device(); luego, el nombre se puede liberar en kobject_cleanup(). El \u0027tl_hba\u0027 se liberar\u00e1 en tcm_loop_release_adapter(), por lo que no es necesario ir a la etiqueta de error en este caso."
    }
  ],
  "id": "CVE-2022-49780",
  "lastModified": "2025-11-07T17:47:48.557",
  "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": "2025-05-01T15:16:01.200",
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      "tags": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-401"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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