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5.5
MEDIUM CVSS 3.1
CVE-2023-53355
staging: pi433: fix memory leak with using debugfs_lookup()
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.

INFO

Published Date :

Sept. 17, 2025, 3:15 p.m.

Last Modified :

Jan. 14, 2026, 7:16 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2023-53355 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Resolve memory leak by replacing debugfs_lookup() with debugfs_lookup_and_remove().
  • Replace debugfs_lookup() calls with debugfs_lookup_and_remove().
  • Save root directory dentry for easier subdirectory creation.
  • Ensure dput() is called on debugfs_lookup() results.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-53355.

URL Resource
https://git.kernel.org/stable/c/04f3cda40e9f6653ae15ed3fcf26ef2860f4df66 Patch
https://git.kernel.org/stable/c/2f36e789e540df6a9fbf471b3a2ba62a8b361586 Patch
https://git.kernel.org/stable/c/bb16f3102607b69e1a0233f4b73c6e337f86ef8d Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-53355 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-53355 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-53355 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-53355 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jan. 14, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-401
  • Initial Analysis by [email protected]

    Dec. 11, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-401
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.2.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14 up to (excluding) 6.1.18
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/04f3cda40e9f6653ae15ed3fcf26ef2860f4df66 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/2f36e789e540df6a9fbf471b3a2ba62a8b361586 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/bb16f3102607b69e1a0233f4b73c6e337f86ef8d Types: Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 17, 2025

    Action Type Old Value New Value
    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.
    Added Reference https://git.kernel.org/stable/c/04f3cda40e9f6653ae15ed3fcf26ef2860f4df66
    Added Reference https://git.kernel.org/stable/c/2f36e789e540df6a9fbf471b3a2ba62a8b361586
    Added Reference https://git.kernel.org/stable/c/bb16f3102607b69e1a0233f4b73c6e337f86ef8d
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact