CVE-2022-4269

Medium

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.

SeverityMedium
CVSS5.5
Exploit probability—
ProductLinux Kernel
PublishedDec 5, 2022
First seenDec 5, 2022
Weakness typeCWE-833CWE-833

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
linux linux_kernel4.1—

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