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5.5 Medium

CVE-2022-4269 A flaw was found in the Linux kernel Traffic Control (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.

Affected products and versions

Product Affected versions Fixed in
Linux kernel (TC subsystem) Versions not published
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 earliest → < 1.1 1.1

References

Timeline

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