SB2024062680 - Improper locking in Linux kernel mhi core driver
Published: June 26, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062680
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) Improper locking (CVE-ID: CVE-2021-46970)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the mhi_register_controller() function in drivers/bus/mhi/core/init.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/abd1510c08a13c88d24b622a83c82e87ff1d3135
- https://git.kernel.org/stable/c/ed541cff35cbdb695f0c98ef506dd7218883fc07
- https://git.kernel.org/stable/c/0fccbf0a3b690b162f53b13ed8bc442ea33437dc
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13