CVE-2023-53866
kernel: ASoC: soc-compress: Reposition and add pcm_mutex
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 9, 2025
Updated · August 5, 2026
Description
A locking issue was found in the ASoC (ALSA SoC) compressed audio subsystem in the Linux kernel. When DPCM (Dynamic PCM) compressed streams are started, several functions access resources without properly holding the card->pcm_mutex lock. This triggers lock assertion warnings and can cause kernel panics if panic_on_warn is enabled.
Statement
This is a locking issue in the ASoC compressed audio subsystem that causes warnings and potential panics. The impact is primarily on systems using compressed audio with DPCM routing and panic_on_warn enabled.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-820 · Missing Synchronization