SB20240530134 - Memory leak in Linux kernel soundwire driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240530134
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-2021-47020)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the sdw_stream_add_slave() function in drivers/soundwire/stream.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/342260fe821047c3d515e3d28085d73fbdce3e80
- https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002
- https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a
- https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88
- https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea
- https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.191
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.37
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.119