Linux Kernel Vulnerability in Networking Configuration by The Linux Foundation

CVE-2026-63982

What is CVE-2026-63982?

A networking configuration vulnerability in the Linux kernel allows for a mirroring redirection loop that can lead to packet handling failures. When certain conditions are met, the state of the scheduling mirroring device (sched_mirred_dev) is lost, which can prevent the detection of existing loops. This issue is critical for network performance, as it can disrupt packet flow and system stability when engaged in mirroring operations involving ingress and egress filters.

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