{"cve":"CVE-2021-47514","nvd":{"published":"2024-05-24T15:15:12.790","modified":"2026-06-17T04:17:40.137","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndevlink: fix netns refcount leak in devlink_nl_cmd_reload()\n\nWhile preparing my patch series adding netns refcount tracking,\nI spotted bugs in devlink_nl_cmd_reload()\n\nSome error paths forgot to release a refcount on a netns.\n\nTo fix this, we can reduce the scope of get_net()/put_net()\nsection around the call to devlink_reload().","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":[],"references":["https://git.kernel.org/stable/c/4b7e90672af8e0c78205db006f1b0a20ebd07f5f","https://git.kernel.org/stable/c/4dbb0dad8e63fcd0b5a117c2861d2abe7ff5f186","https://git.kernel.org/stable/c/fe30b70ca84da9c4aca85c03ad86e7a9b89c5ded","https://git.kernel.org/stable/c/4b7e90672af8e0c78205db006f1b0a20ebd07f5f","https://git.kernel.org/stable/c/4dbb0dad8e63fcd0b5a117c2861d2abe7ff5f186"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47514","score":0.00236,"percentile":0.14584,"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."]}