{"id":"CVE-2021-20268","details":"An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","aliases":["A-182986620","PUB-A-182986620"],"modified":"2026-03-13T00:45:13.087838Z","published":"2021-03-09T18:15:15.687Z","related":["SUSE-SU-2021:1975-1","SUSE-SU-2021:1977-1","openSUSE-SU-2021:1975-1","openSUSE-SU-2021:1977-1"],"references":[{"type":"WEB","url":"https://lore.kernel.org/bpf/CACAyw99bEYWJCSGqfLiJ9Jp5YE1ZsZSiJxb4RFUTwbofipf0dA%40mail.gmail.com/T/#m8929643e99bea9c18ed490a7bc2591145eac6444"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210409-0006/"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1923816"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.10.10"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20268.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:H/A:H"}]}