In the Linux kernel, the following vulnerability has been resolved:

staging: pi433: 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. This requires saving off the root directory dentry to make
creation of individual device subdirectories easier.

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.

The EPSS score is 0.00015.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
874bcba65f9a3a2a304b5f520529c046887c3cdc affected
< 04f3cda40e9f6653ae15ed3fcf26ef2860f4df66
874bcba65f9a3a2a304b5f520529c046887c3cdc affected
< bb16f3102607b69e1a0233f4b73c6e337f86ef8d
874bcba65f9a3a2a304b5f520529c046887c3cdc affected
< 2f36e789e540df6a9fbf471b3a2ba62a8b361586
Linux Linux affected
Version Status Constraints
4.14 affected
—
0 unaffected
< 4.14
6.1.18 unaffected
≤ 6.1.*
6.2.5 unaffected
≤ 6.2.*
6.3 unaffected
≤ *

Configuration 1 [-]

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

No data.

Vendor Product Confidence Versions
Linux Linux Kernel — —

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-59971 In the Linux kernel, the following vulnerability has been resolved: staging: pi433: 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. This requires saving off the root directory dentry to make creation of individual device subdirectories easier.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/04f3cda40e9f6653ae15ed3fcf26ef2860f4df66 cve-icon cve-icon
https://git.kernel.org/stable/c/2f36e789e540df6a9fbf471b3a2ba62a8b361586 cve-icon cve-icon
https://git.kernel.org/stable/c/bb16f3102607b69e1a0233f4b73c6e337f86ef8d cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091721-CVE-2023-53355-823c@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53355 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53355 cve-icon
History

Wed, 14 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Thu, 11 Dec 2025 13:00:00 +0000

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

Thu, 18 Sep 2025 12:00:00 +0000

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

Thu, 18 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

Moderate

Wed, 17 Sep 2025 15:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: staging: pi433: 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. This requires saving off the root directory dentry to make creation of individual device subdirectories easier.
Title staging: pi433: fix memory leak with using debugfs_lookup()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-14T18:43:04.234Z

Reserved: 2025-09-16T16:08:59.567Z

Link: CVE-2023-53355

cve-icon Vulnrichment

Updated: 2026-01-14T18:42:31.890Z

cve-icon NVD

Status : Modified

Published: 2025-09-17T15:15:39.523

Modified: 2026-01-14T19:16:31.880

Link: CVE-2023-53355

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-09-17T00:00:00Z

Links: CVE-2023-53355 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-09-18T11:59:13Z

Weaknesses