CVE-2023-53396
kernel: Linux kernel: Memory leak leading to denial of service via renaming a file in an encrypted directory
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 18, 2025
Updated · June 30, 2026
Description
A flaw was found in the Linux kernel. A local user could trigger a memory leak by renaming a file within an encrypted directory. This occurs because the fscrypt_setup_filename function allocates memory that is not properly freed. This memory leak could lead to a Denial of Service (DoS) on the system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime