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CVE-2026-23078

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: scarlett2: Fix buffer overflow in config retrieval The scarlett2_usb_get_config() function has a logic error in the endianness conversion code that can cause buffer overflows when count > 1. The code checks `if (size == 2)` where `size` is the total buffer size in bytes, then loops `count` times treating each element as u16 (2 bytes). This causes the loop to access `count * 2` bytes when the buffer only has `size` bytes allocated. Fix by checking the element size (config_item->size) instead of the total buffer size. This ensures the endianness conversion matches the actual element type.

Severity
HIGH
CVSS score
7.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-02-04 17:16:18.543000
Last modified
2026-11-05 22:18:01.430000
View original CVE JSON 
{
  "id": "CVE-2026-23078",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-02-04T17:16:18.543",
  "lastModified": "2026-11-05T22:18:01.430",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: scarlett2: Fix buffer overflow in config retrieval\n\nThe scarlett2_usb_get_config() function has a logic error in the\nendianness conversion code that can cause buffer overflows when\ncount > 1.\n\nThe code checks `if (size == 2)` where `size` is the total buffer size in\nbytes, then loops `count` times treating each element as u16 (2 bytes).\nThis causes the loop to access `count * 2` bytes when the buffer only\nhas `size` bytes allocated.\n\nFix by checking the element size (config_item->size) instead of the\ntotal buffer size. This ensures the endianness conversion matches the\nactual element type."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nALSA: scarlett2: Corrección de desbordamiento de búfer en la recuperación de configuración\n\nLa función scarlett2_usb_get_config() tiene un error lógico en el código de conversión de endianness que puede causar desbordamientos de búfer cuando count > 1.\n\nEl código comprueba 'if (size == 2)' donde 'size' es el tamaño total del búfer en bytes, luego itera 'count' veces tratando cada elemento como u16 (2 bytes). Esto hace que el bucle acceda a 'count * 2' bytes cuando el búfer solo tiene 'size' bytes asignados.\n\nSolución comprobando el tamaño del elemento (config_item->size) en lugar del tamaño total del búfer. Esto asegura que la conversión de endianness coincida con el tipo de elemento real."
    }
  ],
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              "versionType": "original_commit_for_fix",
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  ],
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          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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        "ssvcData": {
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          "role": "CISA Coordinator",
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  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
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          "value": "CWE-787"
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}