{"id":"CVE-2021-4135","revision":"0bff3dde816c4d80b3ca0cf8de5709ec","records":[{"revision":"0bff3dde816c4d80b3ca0cf8de5709ec","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2021-4135","aliases":[],"title":"A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this flaw to get…","description":"A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this flaw to get unauthorized access to some data.","state":0,"publishedAt":"2022-07-14T19:30:19+00:00","modifiedAt":"2026-10-08T21:03:11.381+00:00","affected":[{"ecosystem":"Vendor product","name":"kernel","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"kernel\",\n                    \"vendor\": \"n/a\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"Linux kernel versions prior to 5.16-rc6\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2021-4135","license":"CVE Program Terms of Use","key":"cve-program:CVE-2021-4135","identifiers":["CVE-2021-4135"]},"retained":false,"historicalAffected":[]}],"coverage":[]}