---
id: CVE-2026-23078
title: 'ALSA: scarlett2: Fix buffer overflow in config retrieval'
summary: |-
  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 buf…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 <
    d5e80d1f97ae55bcea1426f551e4419245b41b9c
  - >-
    Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 <
    51049f6e3f05d70660e2458ad3bb302a3721b751
  - >-
    Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 <
    91a756d22f0482eac5bedb113c8922f90b254449
  - >-
    Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 <
    27049f50be9f5ae3a62d272128ce0b381cb26a24
  - >-
    Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 <
    31a3eba5c265a763260976674a22851e83128f6d
  - >-
    Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 <
    6f5c69f72e50d51be3a8c028ae7eda42c82902cb
  - Linux 5.14
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T21:19:14.680742Z'
published: '2026-02-04'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:23:16.539Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-23078'
references:
  - url: 'https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9c'
  - url: 'https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751'
  - url: 'https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449'
  - url: 'https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24'
  - url: 'https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6d'
  - url: 'https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cb'
tags:
  - cve.org
epss: 0.00171
epssPercentile: 0.06561
ingestedAt: '2026-11-05T22:38:32.069Z'
---

## Overview

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.

## Affected

- `Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 < d5e80d1f97ae55bcea1426f551e4419245b41b9c`
- `Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 < 51049f6e3f05d70660e2458ad3bb302a3721b751`
- `Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 < 91a756d22f0482eac5bedb113c8922f90b254449`
- `Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 < 27049f50be9f5ae3a62d272128ce0b381cb26a24`
- `Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 < 31a3eba5c265a763260976674a22851e83128f6d`
- `Linux >= ac34df733d2dfe3b553897a1e9e1a44414f09834 < 6f5c69f72e50d51be3a8c028ae7eda42c82902cb`
- `Linux 5.14`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.