fkie_cve-2022-49946
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-06-18 13:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: clk: bcm: rpi: Prevent out-of-bounds access The while loop in raspberrypi_discover_clocks() relies on the assumption that the id of the last clock element is zero. Because this data comes from the Videocore firmware and it doesn't guarantuee such a behavior this could lead to out-of-bounds access. So fix this by providing a sentinel element.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bc163555603e4ae9c817675ad80d618a4cdbfa2d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c8b04b731d43366824841ebdca4ac715f95e0ea4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fcae47b2d23c81603b01f56cf8db63ed64599d34
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff0b144d4b0a9fbd6efe4d2c0a4b6c9bae2138d2
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: bcm: rpi: Prevent out-of-bounds access\n\nThe while loop in raspberrypi_discover_clocks() relies on the assumption\nthat the id of the last clock element is zero. Because this data comes\nfrom the Videocore firmware and it doesn\u0027t guarantuee such a behavior\nthis could lead to out-of-bounds access. So fix this by providing\na sentinel element."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: bcm: rpi: Impedir acceso fuera de los l\u00edmites. El bucle while en raspberrypi_discover_clocks() asume que el ID del \u00faltimo elemento de reloj es cero. Dado que estos datos provienen del firmware de Videocore y no garantizan dicho comportamiento, esto podr\u00eda provocar un acceso fuera de los l\u00edmites. Para solucionarlo, se debe proporcionar un elemento centinela."
    }
  ],
  "id": "CVE-2022-49946",
  "lastModified": "2025-06-18T13:46:52.973",
  "metrics": {},
  "published": "2025-06-18T11:15:21.610",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bc163555603e4ae9c817675ad80d618a4cdbfa2d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c8b04b731d43366824841ebdca4ac715f95e0ea4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fcae47b2d23c81603b01f56cf8db63ed64599d34"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ff0b144d4b0a9fbd6efe4d2c0a4b6c9bae2138d2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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