CVE-2023-53403

MEDIUM

Linux Kernel - Use-After-Free in debugfs_lookup

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: time/debug: 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.

Scores

CVSS v3 5.5
EPSS 0.0014
EPSS Percentile 3.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (11)
Linux/Linux < 5.13
Linux/Linux 44511ab344c755d1f216bf421e92fbc2777e87fe - 15cffd01ed80e3506e29ba9f441e2358413b7317
Linux/Linux 44511ab344c755d1f216bf421e92fbc2777e87fe - 5b268d8abaec6cbd4bd70d062e769098d96670aa
Linux/Linux 44511ab344c755d1f216bf421e92fbc2777e87fe - b588b42d077ce93c98704b41003bcec6a564b738
Linux/Linux 44511ab344c755d1f216bf421e92fbc2777e87fe - dc39fbd865a9819db4b622f610ba17b2ebc294f4
Linux/Linux 5.13
Linux/Linux 5.15.99 - 5.15.*
Linux/Linux 6.1.16 - 6.1.*
Linux/Linux 6.2.3 - 6.2.*
Linux/Linux 6.3
... and 1 more
Published Sep 18, 2025
Tracked Since Feb 18, 2026