CVE-2021-47211

ALSA: usb-audio: fix null pointer dereference on pointer cs_desc

Published: 4/10/2024 Last updated: 12/18/2025 Reserved: 4/10/2024

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.

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Opam packages affected (28)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (3)

Product	Vendor	Version
Linux	Linux	SD626
Linux	Linux	n/a
Linux	Linux	Versions earlier than 10.0.0.166(C00E66R1P11)

CVE-2021-47211

ALSA: usb-audio: fix null pointer dereference on pointer cs_desc

Opam packages affected (28)

Products affected (3)

References (8)