{"id":"CVE-2021-20320","revision":"6f6be7c1df204af9b49d54e9e60bd059","records":[{"revision":"6f6be7c1df204af9b49d54e9e60bd059","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2021-20320","aliases":[],"title":"A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.","description":"A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.","state":0,"publishedAt":"2022-02-18T17:50:43+00:00","modifiedAt":"2026-10-08T21:03:11.944+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\": \"kernel 5.15 rc3\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=2010090","https://lore.kernel.org/bpf/20210902185229.1840281-1-johan.almbladh%40anyfinetworks.com/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2021-20320","license":"CVE Program Terms of Use","key":"cve-program:CVE-2021-20320","identifiers":["CVE-2021-20320"]},"retained":false,"historicalAffected":[]}],"coverage":[]}