{"id":"CVE-2022-47929","details":"In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with \"tc qdisc\" and \"tc class\" commands. This affects qdisc_graft in net/sched/sch_api.c.","modified":"2026-04-16T00:02:11.816289856Z","published":"2023-01-17T21:15:14.590Z","related":["ALSA-2023:2148","ALSA-2023:2458","ALSA-2023:2736","ALSA-2023:2951","SUSE-SU-2023:0152-1","SUSE-SU-2023:0394-1","SUSE-SU-2023:0406-1","SUSE-SU-2023:0407-1","SUSE-SU-2023:0410-1","SUSE-SU-2023:0420-1","SUSE-SU-2023:0433-1","SUSE-SU-2023:0485-1","SUSE-SU-2023:0488-1","SUSE-SU-2023:0618-1","SUSE-SU-2023:0634-1","SUSE-SU-2023:0779-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html"},{"type":"ADVISORY","url":"https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2023/dsa-5324"},{"type":"FIX","url":"https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407"},{"type":"EVIDENCE","url":"https://www.spinics.net/lists/netdev/msg555705.html"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-47929.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"6.1.6"}]},{"events":[{"introduced":"0"},{"last_affected":"11.0"}]}]}}],"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"}]}