SB2025102361 - Input validation error in Linux kernel trace
Published: October 23, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025102361
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) Input validation error (CVE-ID: CVE-2023-53709)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the rb_check_bpage() and rb_check_list() functions in kernel/trace/ring_buffer.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/09b1bf25f7f7a8f2bf8cd4278bba9c3172db8013
- https://git.kernel.org/stable/c/6e02a43acd0691791df79ce538f2dd497a6c9b76
- https://git.kernel.org/stable/c/8843e06f67b14f71c044bf6267b2387784c7e198
- https://git.kernel.org/stable/c/9674390ac540ed06768e3fbc2dba553929fbd736
- https://git.kernel.org/stable/c/d41db100bc386b9433a3fc87026f5e8b453653e3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.99