SB20250919118 - Improper error handling in Linux kernel cpu mce
Published: September 19, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250919118
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) Improper error handling (CVE-ID: CVE-2023-53438)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the arch/x86/kernel/cpu/mce/internal.h. 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/2e01bdf7203c383e9d8489d9f963c52d6c81e4db
- https://git.kernel.org/stable/c/4240e2ebe67941ce2c4f5c866c3af4b5ac7a0c67
- https://git.kernel.org/stable/c/6eac3965901489ae114a664a78cd2d1415d1af5c
- https://git.kernel.org/stable/c/e6e6a5f50f58fadec397b23064b7e4830292863d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.53