{"id":"CVE-2021-47211","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: fix null pointer dereference on pointer cs_desc\n\nThe pointer cs_desc return from snd_usb_find_clock_source could\nbe null, so there is a potential null pointer dereference issue.\nFix this by adding a null check before dereference.","modified":"2026-03-13T05:20:37.355392Z","published":"2024-04-10T19:15:48.547Z","related":["SUSE-SU-2024:1641-1","SUSE-SU-2024:1643-1","SUSE-SU-2024:1644-1","SUSE-SU-2024:1646-1","SUSE-SU-2024:1647-1","SUSE-SU-2024:1659-1","SUSE-SU-2024:1663-1","SUSE-SU-2024:1870-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739"},{"type":"FIX","url":"https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47211.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.15.5"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}