{"cve":"CVE-2021-47485","nvd":{"published":"2024-05-22T09:15:10.503","modified":"2026-08-04T10:17:05.277","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nIB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields\n\nOverflowing either addrlimit or bytes_togo can allow userspace to trigger\na buffer overflow of kernel memory. Check for overflows in all the places\ndoing math on user controlled buffers.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-120"],"references":["https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952","https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724","https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad","https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d","https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47485","score":0.00237,"percentile":0.14743,"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."]}