CVE-2026-46146

MEDIUM

ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3() The convert_chmap_v3() has a loop with its increment size of cs_desc->wLength, but we forgot to validate cs_desc->wLength itself, which may lead to potential endless loop by a malformed descriptor. Add a proper size check to abort the loop for plugging the hole.

Scores

CVSS v3 5.5
EPSS 0.0013
EPSS Percentile 2.7%
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-835
Status published
Products (39)
Linux/Linux < 6.17
Linux/Linux 1034719fdefd26caeec0a44a868bb5a412c2c1a5 - e0e3dcf48189603f3865f1a0b799b3b42baae96d
Linux/Linux 275e37532e8ebe25e8a4069b2d9f955bfd202a46
Linux/Linux 275e37532e8ebe25e8a4069b2d9f955bfd202a46 - 316aa0b1e3c5600eae5ab876394c1ac70e6db581
Linux/Linux 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 - 24a40df79307ca7ca0eec0889361cf6ac146d72a
Linux/Linux 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902
Linux/Linux 5.10.241 - 5.10.258
Linux/Linux 5.10.241 - 5.11
Linux/Linux 5.10.258 - 5.10.*
Linux/Linux 5.15.190 - 5.15.209
... and 29 more
Published May 28, 2026
Tracked Since May 28, 2026