{"id":"CVE-2022-4269","title":"A flaw was found in the Linux kernel Traffic Control (TC) subsystem","summary":"A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action \"mirred\") a local unprivileged user could trigger a CPU soft lockup (AB…","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-833"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel = 4.1"],"published":"2022-12-05","updated":"2026-10-14","sourceUpdated":"2026-10-14T14:17:28.530","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-4269","references":[{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html","label":"secalert@redhat.com"},{"url":"https://lore.kernel.org/netdev/33dc43f587ec1388ba456b4915c75f02a8aae226.1663945716.git.dcaratti%40redhat.com/","label":"secalert@redhat.com"},{"url":"https://security.netapp.com/advisory/ntap-20230929-0001/","label":"secalert@redhat.com"},{"url":"https://www.debian.org/security/2023/dsa-5480","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lore.kernel.org/netdev/33dc43f587ec1388ba456b4915c75f02a8aae226.1663945716.git.dcaratti%40redhat.com/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20230929-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5480","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00201,"epssPercentile":0.09934,"ingestedAt":"2026-10-14T15:36:13.927Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2025-04-14T15:20:55.720146Z"},"slug":"CVE-2022-4269","body":"## Overview\n\nA flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action \"mirred\") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.\n\n## Affected\n\n- `linux_kernel = 4.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}