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CVE-2023-53411: PM: EM: 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: PM: EM: 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: from 5.0 before 5.10.173; from 5.11 before 5.15.99; from 5.16 before 6.1.16; from 6.2 before 6.2.3 — fixed in 5.10.173, 5.15.99, 6.1.16, 6.2.3

How to fix

Upgrade to a fixed version: Linux kernel 5.10.173, 5.15.99, 6.1.16, 6.2.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/30fee10192e1239478a0987bc7ee445d5e980d46
• https://git.kernel.org/stable/c/5100c4efc30636aa48ac517dece3c3b7f84fe367
• https://git.kernel.org/stable/c/84e4d4885d0ae011860fb599d50d01b8fdca2b87
• https://git.kernel.org/stable/c/a0e8c13ccd6a9a636d27353da62c2410c4eca337
• https://git.kernel.org/stable/c/e974e8f1e37d22c0de07374f8ddc84073fef2f1d

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