{"id":"CVE-2021-4135","details":"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.","modified":"2026-04-16T00:01:11.208959753Z","published":"2022-07-14T20:15:08.360Z","related":["SUSE-SU-2022:0169-1","SUSE-SU-2022:0197-1","SUSE-SU-2022:0198-1","SUSE-SU-2022:0288-1","SUSE-SU-2022:0289-1","SUSE-SU-2022:0364-1","SUSE-SU-2022:0366-1","SUSE-SU-2022:0372-1","SUSE-SU-2022:0555-1","openSUSE-SU-2022:0169-1","openSUSE-SU-2022:0198-1","openSUSE-SU-2022:0366-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-4135.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.16"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-NA"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc1"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc2"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc3"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc4"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc5"}]}]}}],"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"}]}