fkie_cve-2022-50190
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-06-18 13:47
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: Fix simplification of devm_spi_register_controller This reverts commit 59ebbe40fb51 ("spi: simplify devm_spi_register_controller"). If devm_add_action() fails in devm_add_action_or_reset(), devm_spi_unregister() will be called, it decreases the refcount of 'ctlr->dev' to 0, then it will cause uaf in the drivers that calling spi_put_controller() in error path.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34bab623ebfc08398499e463396b81abb4abe01e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c6bd448442b6c3f6843ac70d57201a13478dd47
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/43cc5a0afe4184a7fafe1eba32b5a11bb69c9ce0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/445fb9c19cf45bd9472fd9babaa31c5e6c7d2720
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: Fix simplification of devm_spi_register_controller\n\nThis reverts commit 59ebbe40fb51 (\"spi: simplify\ndevm_spi_register_controller\").\n\nIf devm_add_action() fails in devm_add_action_or_reset(),\ndevm_spi_unregister() will be called, it decreases the\nrefcount of \u0027ctlr-\u003edev\u0027 to 0, then it will cause uaf in\nthe drivers that calling spi_put_controller() in error path."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: Correcci\u00f3n de la simplificaci\u00f3n de devm_spi_register_controller. Esto revierte el commit 59ebbe40fb51 (\"spi: simplificar devm_spi_register_controller\"). Si devm_add_action() falla en devm_add_action_or_reset(), se llamar\u00e1 a devm_spi_unregister(), lo que reduce el recuento de referencias de \u0027ctlr-\u0026gt;dev\u0027 a 0 y, en consecuencia, causar\u00e1 un error uaf en los controladores que llaman a spi_put_controller() en la ruta de error."
    }
  ],
  "id": "CVE-2022-50190",
  "lastModified": "2025-06-18T13:47:40.833",
  "metrics": {},
  "published": "2025-06-18T11:15:49.593",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/34bab623ebfc08398499e463396b81abb4abe01e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3c6bd448442b6c3f6843ac70d57201a13478dd47"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/43cc5a0afe4184a7fafe1eba32b5a11bb69c9ce0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/445fb9c19cf45bd9472fd9babaa31c5e6c7d2720"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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