{"id":"CVE-2021-20320","details":"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.","modified":"2026-03-12T21:52:50.067988Z","published":"2022-02-18T18:15:08.877Z","related":["SUSE-SU-2021:3969-1","SUSE-SU-2025:01983-1"],"references":[{"type":"WEB","url":"https://lore.kernel.org/bpf/20210902185229.1840281-1-johan.almbladh%40anyfinetworks.com/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2010090"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.15"}]},{"events":[{"introduced":"0"},{"last_affected":"5.15-NA"}]},{"events":[{"introduced":"0"},{"last_affected":"5.15-rc1"}]},{"events":[{"introduced":"0"},{"last_affected":"5.15-rc2"}]},{"events":[{"introduced":"0"},{"last_affected":"34"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20320.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}