FKIE_CVE-2026-23180

Vulnerability from fkie_nvd - Published: 2026-02-14 17:15 - Updated: 2026-02-18 17:52
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: add bounds check for if_id in IRQ handler The IRQ handler extracts if_id from the upper 16 bits of the hardware status register and uses it to index into ethsw->ports[] without validation. Since if_id can be any 16-bit value (0-65535) but the ports array is only allocated with sw_attr.num_ifs elements, this can lead to an out-of-bounds read potentially. Add a bounds check before accessing the array, consistent with the existing validation in dpaa2_switch_rx().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b381a638e1851d8cfdfe08ed9cdbec5295b18c9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2447edc367800ba914acf7ddd5d250416b45fb31
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31a7a0bbeb006bac2d9c81a2874825025214b6d8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34b56c16efd61325d80bf1d780d0e176be662f59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77611cab5bdfff7a070ae574bbfba20a1de99d1b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f89e33c9c37f0001b730e23b3b05ab7b1ecface2
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: add bounds check for if_id in IRQ handler\n\nThe IRQ handler extracts if_id from the upper 16 bits of the hardware\nstatus register and uses it to index into ethsw-\u003eports[] without\nvalidation. Since if_id can be any 16-bit value (0-65535) but the ports\narray is only allocated with sw_attr.num_ifs elements, this can lead to\nan out-of-bounds read potentially.\n\nAdd a bounds check before accessing the array, consistent with the\nexisting validation in dpaa2_switch_rx()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndpaa2-switch: a\u00f1adir comprobaci\u00f3n de l\u00edmites para if_id en el manejador IRQ\n\nEl manejador IRQ extrae if_id de los 16 bits superiores del registro de estado del hardware y lo utiliza para indexar en ethsw-\u0026gt;ports[] sin validaci\u00f3n. Dado que if_id puede ser cualquier valor de 16 bits (0-65535) pero el array de puertos solo se asigna con elementos sw_attr.num_ifs, esto puede llevar a una posible lectura fuera de l\u00edmites.\n\nA\u00f1adir una comprobaci\u00f3n de l\u00edmites antes de acceder al array, consistente con la validaci\u00f3n existente en dpaa2_switch_rx()."
    }
  ],
  "id": "CVE-2026-23180",
  "lastModified": "2026-02-18T17:52:22.253",
  "metrics": {},
  "published": "2026-02-14T17:15:55.747",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1b381a638e1851d8cfdfe08ed9cdbec5295b18c9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2447edc367800ba914acf7ddd5d250416b45fb31"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/31a7a0bbeb006bac2d9c81a2874825025214b6d8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/34b56c16efd61325d80bf1d780d0e176be662f59"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/77611cab5bdfff7a070ae574bbfba20a1de99d1b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f89e33c9c37f0001b730e23b3b05ab7b1ecface2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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