SB2025121043 - Memory leak in Linux kernel x86 util
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025121043
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) Memory leak (CVE-ID: CVE-2023-53793)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the x86__is_amd_cpu() function in tools/perf/arch/x86/util/env.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/010139bfc6bb9ddab81dbc2cf71cd3a9c28adc7f
- https://git.kernel.org/stable/c/75d65c1cc439606ada882755fd205d13c2c7907d
- https://git.kernel.org/stable/c/99d4850062a84564f36923764bb93935ef2ed108
- https://git.kernel.org/stable/c/f3daf02a41e3c11e1a473517a8a6169248fb8e7b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.4