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CVE-2021-47332

ALSA: usx2y: Don't call free_pages_exact() with NULL address

Published: 5/21/2024 Last updated: 12/18/2025 Reserved: 5/21/2024

In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: Don't call free_pages_exact() with NULL address Unlike some other functions, we can't pass NULL pointer to free_pages_exact(). Add a proper NULL check for avoiding possible Oops.

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

Opam packages affected (27)

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 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 (4)

Product Vendor Version
Linux Linux bc5d453eab4506cb52397db8830d1070904265a4
Linux Linux n/a
Linux Linux < 9b7c5004d7c5ae062134052a85290869a015814c
Linux Linux <= 5.10.*

References (20)