SB2025121018 - Memory leak in Linux kernel soc codecs
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025121018
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2023-53842)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the wcd_mbhc_init() and EXPORT_SYMBOL() functions in sound/soc/codecs/wcd-mbhc-v2.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/17feff71d06c96dea1fa72451c20d411e9d5ac8f
- https://git.kernel.org/stable/c/90ab6446eb522e31421b77bf8f45714f5668f9a3
- https://git.kernel.org/stable/c/a5475829adcc600bc69ee9ff7c9e3e43fb4f8d30
- https://git.kernel.org/stable/c/ce4059e1c0aca972446e06c09ee09a0d2ba5df54
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.7