SB20240624106 - Resource management error in Linux kernel sched
Published: June 24, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240624106
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) Resource management error (CVE-ID: CVE-2021-47387)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the sugov_tunables_free(), sugov_tunables_alloc(), sugov_init() and sugov_exit() functions in kernel/sched/cpufreq_schedutil.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/cb4a53ba37532c861a5f3f22803391018a41849a
- https://git.kernel.org/stable/c/463c46705f321201090b69c4ad5da0cd2ce614c9
- https://git.kernel.org/stable/c/30d57cf2c4116ca6d34ecd1cac94ad84f8bc446c
- https://git.kernel.org/stable/c/67c98e023135ff81b8d52998a6fdb8ca0c518d82
- https://git.kernel.org/stable/c/a7d4fc84404d45d72f4490417e8cc3efa4af93f1
- https://git.kernel.org/stable/c/8d62aec52a8c5b1d25a2364b243fcc5098a2ede9
- https://git.kernel.org/stable/c/e5c6b312ce3cc97e90ea159446e6bfa06645364d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.249
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.209
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.285
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.71
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.151