CVE-2021-47211

Updated: 2026-02-27 01:13:35.057107

Description:

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix null pointer dereference on pointer cs_desc The pointer cs_desc return from snd_usb_find_clock_source could be null, so there is a potential null pointer dereference issue. Fix this by adding a null check before dereference.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0.0
CVSS Version 3.x MEDIUM 5.5

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

CentOS 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-01-16 10:38:26 Ignored due to low severity
CloudLinux 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-01-16 10:38:26 Ignored due to low severity
Oracle Linux 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-01-16 10:38:26 Ignored due to low severity
Ubuntu 16.04 ELS linux-hwe 4.15.0 5.5 MEDIUM Released CLSA-2025:1749571039 2025-06-11 01:01:01
Ubuntu 16.04 ELS linux 4.4.0 5.5 MEDIUM Released CLSA-2025:1749548218 2025-06-11 01:00:59
Ubuntu 18.04 ELS linux 4.15.0 5.5 MEDIUM Released CLSA-2025:1749548422 2025-06-11 00:53:47
Ubuntu 20.04 ELS linux 5.4.0 5.5 MEDIUM Ignored 2025-07-09 04:31:05 Ignored due to low severity