What’s Vulnerable › Vulnerabilities

CVE-2023-53405: USB: gadget: gr_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: gr_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/0933eca15f5223b5c2412080c8c3de8758465c78
• https://git.kernel.org/stable/c/30f9ba2396a1130eef7f2d3ee7ee8037b7c25be9
• https://git.kernel.org/stable/c/73f4451368663ad28daa67980c6dd11d83b303eb
• https://git.kernel.org/stable/c/be21a66e17ee0ab5f3513b6c86659e60cec5e981

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