CVE-2026-23078

high

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.

References

https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9c

https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449

https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cb

https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751

https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6d

https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24

Details

Source: Mitre, NVD

Published: 2026-02-04

Updated: 2026-02-06

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00018