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CVE-2022-4269

Published: Dec 5, 2022

Modified: Apr 14, 2025

PUBLISHED

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.

Vendor	Product	Versions
n/a	Linux kernel (TC subsystem)	affected `Since upstream commit 53592b3 (v4.10-rc1)`

Weaknesses (CWE)

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

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