SB20240530136 - Memory leak in Linux kernel regmap driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240530136
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-2021-47058)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the regmap_debugfs_exit() function in drivers/base/regmap/regmap-debugfs.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/2dc1554d5f0fdaf47cc5bea442b84b9226fea867
- https://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52
- https://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6
- https://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d
- https://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a
- https://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268
- 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