CVE-2026-43436

MEDIUM

ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an endpoint in the parsed interface in scarlett2_find_fc_interface(), as reported by fuzzer. For avoiding the NULL dereference, just add the sanity check of bNumEndpoints and skip the invalid interface.

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (22)
Linux/Linux < 5.14
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 3d4f23885e4b90347c9a1d779af6e79a99b5172a
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 3d542cf3c4c854cdf5d58049771f68926b9eb2b9
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - b014cc945baba75816cda0cf8934be87c9ed4947
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - b267255c15d2a5b90c4e926146aa155e5161e264
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - df1d8abf36ca3681c21a6809eaa9a1e01ef897a6
Linux/Linux 5.14
Linux/Linux 6.1.167 - 6.1.*
Linux/Linux 6.12.78 - 6.12.*
... and 12 more
Published May 08, 2026
Tracked Since May 08, 2026