What’s Vulnerable › Vulnerabilities

CVE-2023-53406: USB: gadget: pxa25x_udc: fix memory leak with using debugfs_lookup()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-18 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: USB: gadget: pxa25x_udc: 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.

Affected products

• Linux kernel: before 5.15.100; from 5.16 before 6.1.18; from 6.2 before 6.2.5 — fixed in 5.15.100, 6.1.18, 6.2.5

How to fix

Upgrade to a fixed version: Linux kernel 5.15.100, 6.1.18, 6.2.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/6236a6d2cdfb710bd8a82c4b179d0a034d0d99cb
• https://git.kernel.org/stable/c/78d9586d8e728be1e360d3d0da7170c791d1d55e
• https://git.kernel.org/stable/c/7a038a681b7df78362d9fc7013e5395a694a9d3a
• https://git.kernel.org/stable/c/8d48a7887dbca22e064c20caf20ae7949019fe9b

Get alerted when CVE-2023-53406 or the next vulnerability affects your stack