{"id":"CVE-2016-4557","details":"The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor.","modified":"2026-03-15T22:07:56.070487Z","published":"2016-05-23T10:59:03.707Z","related":["openSUSE-SU-2024:10128-1"],"references":[{"type":"ADVISORY","url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=808"},{"type":"ADVISORY","url":"https://www.exploit-db.com/exploits/40759/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html"},{"type":"ADVISORY","url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2016/05/06/4"},{"type":"ADVISORY","url":"https://bugs.debian.org/823603"},{"type":"ADVISORY","url":"https://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7"},{"type":"ADVISORY","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1334307"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-4557.json","unresolved_ranges":[{"events":[{"introduced":"4.4"},{"fixed":"4.4.11"}]},{"events":[{"introduced":"4.5"},{"fixed":"4.5.5"}]}]}}],"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"}]}