{"id":"CVE-2023-53408","summary":"trace/blktrace: fix memory leak with using debugfs_lookup()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntrace/blktrace: 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.","modified":"2026-04-02T09:44:08.723856Z","published":"2025-09-18T13:58:46.767Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53408.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3036f5f5ae5210797d95446795df01c1249af9ad"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5286b72fb425291af5f4ca7285d73c16a08d8691"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83e8864fee26f63a7435e941b7c36a20fd6fe93e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a2e4b48d6f9b39aa19bafe223f9dd436a692fc80"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53408.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53408"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"78acc7dbd84a8c173a08584750845c31611160f2"},{"fixed":"a2e4b48d6f9b39aa19bafe223f9dd436a692fc80"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"30939293262eb433c960c4532a0d59c4073b2b84"},{"fixed":"3036f5f5ae5210797d95446795df01c1249af9ad"},{"fixed":"5286b72fb425291af5f4ca7285d73c16a08d8691"},{"fixed":"83e8864fee26f63a7435e941b7c36a20fd6fe93e"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"6418634238ade86f2b08192928787f39d8afb58c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53408.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}