{"cve":"CVE-2021-47616","nvd":{"published":"2024-06-19T15:15:56.130","modified":"2026-08-04T10:17:11.163","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA: Fix use-after-free in rxe_queue_cleanup\n\nOn error handling path in rxe_qp_from_init() qp->sq.queue is freed and\nthen rxe_create_qp() will drop last reference to this object. qp clean up\nfunction will try to free this queue one time and it causes UAF bug.\n\nFix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().","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-416"],"references":["https://git.kernel.org/stable/c/84b01721e8042cdd1e8ffeb648844a09cd4213e0","https://git.kernel.org/stable/c/acb53e47db1fbc7cd37ab10b46388f045a76e383","https://git.kernel.org/stable/c/84b01721e8042cdd1e8ffeb648844a09cd4213e0","https://git.kernel.org/stable/c/acb53e47db1fbc7cd37ab10b46388f045a76e383"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:52:00.836172422+00:00"},"epss":{"cve":"CVE-2021-47616","score":0.00217,"percentile":0.12178,"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."]}