{"id":"CVE-2021-47186","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: check for null after calling kmemdup\n\nkmemdup can return a null pointer so need to check for it, otherwise\nthe null key will be dereferenced later in tipc_crypto_key_xmit as\ncan be seen in the trace [1].\n\n\n[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58","modified":"2026-03-15T22:43:07.369618Z","published":"2024-04-10T19:15:47.430Z","related":["SUSE-SU-2024:2894-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2947-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916"},{"type":"FIX","url":"https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10"},{"type":"FIX","url":"https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47186.json","unresolved_ranges":[{"events":[{"introduced":"5.5"},{"fixed":"5.10.82"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.15.5"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc1"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}