{"cve":"CVE-2021-47177","nvd":{"published":"2024-03-25T10:15:09.213","modified":"2026-06-17T04:16:50.470","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix sysfs leak in alloc_iommu()\n\niommu_device_sysfs_add() is called before, so is has to be cleaned on subsequent\nerrors.","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/044bbe8b92ab4e542de7f6c93c88ea65cccd8e29","https://git.kernel.org/stable/c/0ee74d5a48635c848c20f152d0d488bf84641304","https://git.kernel.org/stable/c/22da9f4978381a99f1abaeaf6c9b83be6ab5ddd8","https://git.kernel.org/stable/c/2ec5e9bb6b0560c90d315559c28a99723c80b996","https://git.kernel.org/stable/c/ca466561eef36d1ec657673e3944eb6340bddb5b"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:47:51.568503435+00:00"},"epss":{"cve":"CVE-2021-47177","score":0.00238,"percentile":0.14944,"date":"2026-11-01"},"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."]}