{"id":"CVE-2023-53355","summary":"staging: pi433: fix memory leak with using debugfs_lookup()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: pi433: 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.  This requires saving off the root directory dentry to make\ncreation of individual device subdirectories easier.","modified":"2026-04-02T09:44:02.945937Z","published":"2025-09-17T14:56:45.400Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53355.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/04f3cda40e9f6653ae15ed3fcf26ef2860f4df66"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2f36e789e540df6a9fbf471b3a2ba62a8b361586"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bb16f3102607b69e1a0233f4b73c6e337f86ef8d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53355.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53355"},{"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":"874bcba65f9a3a2a304b5f520529c046887c3cdc"},{"fixed":"04f3cda40e9f6653ae15ed3fcf26ef2860f4df66"},{"fixed":"bb16f3102607b69e1a0233f4b73c6e337f86ef8d"},{"fixed":"2f36e789e540df6a9fbf471b3a2ba62a8b361586"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53355.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"}]}