Memory leak in Linux kernel - CVE-2023-53408
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115855
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53408
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2023-53408
Install update from vendor's repository.
Sources
- 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