CVE-2023-53402

In the Linux kernel, the following vulnerability has been resolved: kernel/printk/index.c: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

Score

CVSS 3.1 5.5 Medium

Status

Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2025-09-18

Last modified

2026-05-11

Weaknesses

CWE-401

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/13969236b6900b5a3625ad2193569588e978f1cc
• https://git.kernel.org/stable/c/2e07fa2e30d48d24a791483774a3d4b76769e0cf
• https://git.kernel.org/stable/c/55bf243c514553e907efcf2bda92ba090eca8c64
• https://git.kernel.org/stable/c/c578a68ffcdc2e8c72556bebdaae2b7500398e81