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prionPRIOn knowledge basePRION:CVE-2022-4269
HistoryDec 05, 2022 - 4:15 p.m.

Race condition

2022-12-0516:15:00
PRIOn knowledge base
www.prio-n.com
10
linux kernel
traffic control
denial of service

5.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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.

CPENameOperatorVersion
linux_kerneleq4.1 rc1