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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/3036f5f5ae5210797d95446795df01c1249af9ad cve-icon cve-icon
https://git.kernel.org/stable/c/5286b72fb425291af5f4ca7285d73c16a08d8691 cve-icon cve-icon
https://git.kernel.org/stable/c/83e8864fee26f63a7435e941b7c36a20fd6fe93e cve-icon cve-icon
https://git.kernel.org/stable/c/a2e4b48d6f9b39aa19bafe223f9dd436a692fc80 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091801-CVE-2023-53408-5a18@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53408 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53408 cve-icon
History

Wed, 14 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 11 Dec 2025 15:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Fri, 19 Sep 2025 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Fri, 19 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Thu, 18 Sep 2025 14:15:00 +0000

Type Values Removed Values Added
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.
Title trace/blktrace: fix memory leak with using debugfs_lookup()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-18T13:58:46.767Z

Updated: 2026-01-14T19:13:05.791Z

Reserved: 2025-09-17T14:54:09.739Z

Link: CVE-2023-53408

cve-icon Vulnrichment

Updated: 2026-01-14T19:03:29.565Z

cve-icon NVD

Status : Modified

Published: 2025-09-18T14:15:44.253

Modified: 2026-01-14T20:15:58.600

Link: CVE-2023-53408

cve-icon Redhat

Severity : Low

Publid Date: 2025-09-18T00:00:00Z

Links: CVE-2023-53408 - Bugzilla