CVE-2023-53408

MEDIUM

Linux Kernel < 5.15.99 - Use-After-Free in blktrace debugfs_lookup

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: trace/blktrace: 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 (14)
Linux/Linux < 5.17
Linux/Linux 30939293262eb433c960c4532a0d59c4073b2b84 - 3036f5f5ae5210797d95446795df01c1249af9ad
Linux/Linux 30939293262eb433c960c4532a0d59c4073b2b84 - 5286b72fb425291af5f4ca7285d73c16a08d8691
Linux/Linux 30939293262eb433c960c4532a0d59c4073b2b84 - 83e8864fee26f63a7435e941b7c36a20fd6fe93e
Linux/Linux 5.15.27 - 5.15.99
Linux/Linux 5.15.99 - 5.15.*
Linux/Linux 5.16.13 - 5.17
Linux/Linux 5.17
Linux/Linux 6.1.16 - 6.1.*
Linux/Linux 6.2.3 - 6.2.*
... and 4 more
Published Sep 18, 2025
Tracked Since Feb 18, 2026