{"id":"CVE-2022-47929","title":"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 \"…","summary":"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 \"…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476","CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 6.1.6","debian_linux = 11.0"],"patched":["linux_kernel 6.1.6"],"published":"2023-01-17","updated":"2026-10-14","sourceUpdated":"2026-10-14T19:16:55.770","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-47929","references":[{"url":"https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6","label":"cve@mitre.org"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html","label":"cve@mitre.org"},{"url":"https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html","label":"cve@mitre.org"},{"url":"https://www.debian.org/security/2023/dsa-5324","label":"cve@mitre.org"},{"url":"https://www.spinics.net/lists/netdev/msg555705.html","label":"cve@mitre.org"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5324","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.spinics.net/lists/netdev/msg555705.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-769027.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd"],"epss":0.00964,"epssPercentile":0.60867,"ingestedAt":"2026-10-14T19:49:57.529Z","slug":"CVE-2022-47929","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `linux_kernel < 6.1.6`\n- `debian_linux = 11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.1.6`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}