SB2025091930 - Memory leak in Linux kernel trace
Published: September 19, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091930
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-2023-53408)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the blk_trace_free() function in kernel/trace/blktrace.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/3036f5f5ae5210797d95446795df01c1249af9ad
- https://git.kernel.org/stable/c/5286b72fb425291af5f4ca7285d73c16a08d8691
- https://git.kernel.org/stable/c/83e8864fee26f63a7435e941b7c36a20fd6fe93e
- https://git.kernel.org/stable/c/a2e4b48d6f9b39aa19bafe223f9dd436a692fc80
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.99