CVE-2022-4269 | BDVDB-2026-189802 Detail
Linux kernel (TC subsystem)
Description#
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 (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
References#
- https://lore.kernel.org/netdev/33dc43f587ec1388ba456b4915c75f02a8aae226.1663945716.git.dcaratti%40redhat.com/
- https://www.debian.org/security/2023/dsa-5480
- https://security.netapp.com/advisory/ntap-20230929-0001/
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.