SB20251230303 - Resource management error in Linux kernel rcu
Published: December 30, 2025
Security Bulletin ID
SB20251230303
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-2023-54246)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the rcu_scale_writer() function in kernel/rcu/rcuscale.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/4f03fba096bfded90e0d71eba8839a46922164d1
- https://git.kernel.org/stable/c/55887adc76e19aec9763186e2c1d0a3481d20e96
- https://git.kernel.org/stable/c/83ed0cdb6ae0383dd14b02375c353773836884ed
- https://git.kernel.org/stable/c/9416dccb31fdb190d25d57e97674f232651f6560
- https://git.kernel.org/stable/c/e60c122a1614b4f65b29a7bef9d83b9fd30e937a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.197
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.133
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6