SB20250916305 - Resource management error in Linux kernel rcu
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916305
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-2023-53291)
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_cleanup() 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/1dd7547c7610723b2b6afe1a3c4ddb2bde63387c
- https://git.kernel.org/stable/c/23fc8df26dead16687ae6eb47b0561a4a832e2f6
- https://git.kernel.org/stable/c/29b1da4f90fc42c91beb4e400d926194925ad31b
- https://git.kernel.org/stable/c/604d6a5ff718874904b0fe614878a42b42c0d699
- https://git.kernel.org/stable/c/b8a6ba524d41f4da102e65f90498d9a910839621
- https://git.kernel.org/stable/c/f766d45ab294871a3d588ee76c666852f151cad9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121