GHSA-25GW-4V5M-94PP
Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-03-18 15:30In 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.
{
"affected": [],
"aliases": [
"CVE-2026-23078"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-04T17:16:18Z",
"severity": "HIGH"
},
"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": "2026-03-18T15:30:39Z",
"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": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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