Network Namespace Management Flaw in Linux Kernel

CVE-2026-98424

What is CVE-2026-98424?

A vulnerability in the Linux kernel's cfg80211 subsystem affects how network namespaces are managed during interface renaming operations. When the system attempts to rename a wireless PHY interface after switching its network namespace, allocation failures can result. This flaw could leave the configuration in an inconsistent state. The remedial action outlined involves undoing the namespace switch if the rename fails; however, this process can also encounter issues. A proper error handling mechanism is essential to prevent resource mismanagement and keep the network configuration stable.

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