{"cve":"CVE-2023-53402","nvd":{"published":"2025-09-18T14:15:43.527","modified":"2026-06-17T06:45:13.727","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nkernel/printk/index.c: fix memory leak with using debugfs_lookup()\n\nWhen calling debugfs_lookup() the result must have dput() called on it,\notherwise the memory will leak over time.  To make things simpler, just\ncall debugfs_lookup_and_remove() instead which handles all of the logic\nat once.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/13969236b6900b5a3625ad2193569588e978f1cc","https://git.kernel.org/stable/c/2e07fa2e30d48d24a791483774a3d4b76769e0cf","https://git.kernel.org/stable/c/55bf243c514553e907efcf2bda92ba090eca8c64","https://git.kernel.org/stable/c/c578a68ffcdc2e8c72556bebdaae2b7500398e81"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:10:08.713834912+00:00"},"epss":{"cve":"CVE-2023-53402","score":0.00148,"percentile":0.03985,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}