SB2025082020 - Memory leak in Linux kernel events
Published: August 20, 2025
Security Bulletin ID
SB2025082020
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-2025-38563)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the perf_mmap_pfn_mkwrite() function in kernel/events/core.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/65311aad4c808bedad0c05d9bb8b06c47dae73eb
- https://git.kernel.org/stable/c/6757a31a8e295ae4f01717a954afda173f25a121
- https://git.kernel.org/stable/c/7b84cb58d1f0aa07656802eae24689566e5f5b1b
- https://git.kernel.org/stable/c/b024d7b56c77191cde544f838debb7f8451cd0d6
- https://git.kernel.org/stable/c/e529888b7e8092912dd8789bdfc76685ccd2ff5f
- https://git.kernel.org/stable/c/ff668930871e0198c7f4e325058b8b7c286787bd