CVE-2023-53402
MEDIUMLinux kernel < 5.15 - Use-After-Free in debugfs_lookup
Title source: llmDescription
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.
References (4)
Core 4
Core References
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
< 5.15
Linux/Linux
337015573718b161891a3473d25f59273f2e626b - 13969236b6900b5a3625ad2193569588e978f1cc
Linux/Linux
337015573718b161891a3473d25f59273f2e626b - 2e07fa2e30d48d24a791483774a3d4b76769e0cf
Linux/Linux
337015573718b161891a3473d25f59273f2e626b - 55bf243c514553e907efcf2bda92ba090eca8c64
Linux/Linux
337015573718b161891a3473d25f59273f2e626b - c578a68ffcdc2e8c72556bebdaae2b7500398e81
Linux/Linux
5.15
Linux/Linux
5.15.100 - 5.15.*
Linux/Linux
6.1.18 - 6.1.*
Linux/Linux
6.2.5 - 6.2.*
Linux/Linux
6.3
... and 1 more
Published
Sep 18, 2025
Tracked Since
Feb 18, 2026