GHSA-25GW-4V5M-94PP

Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-02-06 18:30
VLAI?
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23078"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-04T17:16:18Z",
    "severity": null
  },
  "details": "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 \u003e 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-\u003esize) instead of the\ntotal buffer size. This ensures the endianness conversion matches the\nactual element type.",
  "id": "GHSA-25gw-4v5m-94pp",
  "modified": "2026-02-06T18:30:30Z",
  "published": "2026-02-04T18:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23078"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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