CVE-2023-53197 Details
Description
In the Linux kernel, the following vulnerability has been resolved: USB: uhci: 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.
A memory leak vulnerability has been identified in the USB UHCI (Universal Host Controller Interface) driver of the Linux kernel. This issue arises when the function 'debugfs_lookup()' is called without subsequently using 'dput()' to release the reference, leading to a gradual increase in memory usage over time. The vulnerability is present in the Linux kernel stable tree. The root cause is the improper handling of debugfs lookups, which can be exploited by failing to release memory references, causing a leak.
The vulnerability has been addressed by modifying the USB UHCI driver to use 'debugfs_lookup_and_remove()' instead of 'debugfs_lookup()'. This change ensures that the memory is properly managed and prevents the leak. Users can apply the latest patches available in the Linux kernel stable tree to remediate this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0a3f82c79c86278e7f144564b1cb6cc5c3657144 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9cb88847b8b86f132309030022a23dca895b6f61 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c6af1dbc99ad37bf67c8703982df4d7f12d256c1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e529aeb771aef1402c899b6b405610ef444d5d88 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | < 5.15.100 >= 5.16, < 6.1.18 >= 6.2, < 6.2.5 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Dec 2, 2025 | Initial Analysis | [email protected] |
| Sep 15, 2025 | New CVE Received | kernel.org |