CVE-2021-47211

Published: Apr 10, 2024Modified: Jun 19, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

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.

Affected (1)

Products: Linux: Linux Kernel

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 5.15.5

Related CWEs

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

References (5)

https://git.kernel.org/stable/c/3455984b16eeb6914caf8b59498ef24fcc1f0a78

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

Timeline

No history available yet.