{"cve":"CVE-2021-47201","nvd":{"published":"2024-04-10T19:15:48.123","modified":"2026-08-04T10:16:52.383","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niavf: free q_vectors before queues in iavf_disable_vf\n\niavf_free_queues() clears adapter->num_active_queues, which\niavf_free_q_vectors() relies on, so swap the order of these two function\ncalls in iavf_disable_vf(). This resolves a panic encountered when the\ninterface is disabled and then later brought up again after PF\ncommunication is restored.","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/78638b47132244e3934dc5dc79f6372d5ce8e98c","https://git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1","https://git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489e","https://git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3f","https://git.kernel.org/stable/c/78638b47132244e3934dc5dc79f6372d5ce8e98c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:48:32.179249784+00:00"},"epss":{"cve":"CVE-2021-47201","score":0.00247,"percentile":0.16034,"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."]}