{"cve":"CVE-2021-47423","nvd":{"published":"2024-05-21T15:15:27.727","modified":"2026-06-17T04:17:26.287","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/debugfs: fix file release memory leak\n\nWhen using single_open() for opening, single_release() should be\ncalled, otherwise the 'op' allocated in single_open() will be leaked.","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/11cd944bb87d9e575b94c07c952105eda745b459","https://git.kernel.org/stable/c/1508b09945bde393326a9dab73b1fc35f672d771","https://git.kernel.org/stable/c/88c3610045ca6e699331b6bb5c095c5565f30721","https://git.kernel.org/stable/c/9f9d4c88b2edc7924e19c44909cfc3fa4e4d3d43","https://git.kernel.org/stable/c/df0c9418923679bc6d0060bdb1b5bf2c755159e0"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47423","score":0.00223,"percentile":0.13007,"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."]}