Linux Kernel Vulnerability in Wi-Fi Adapter from Realtek

CVE-2026-46092

What is CVE-2026-46092?

A vulnerability in the Linux kernel related to the Realtek 8821CE Wi-Fi adapter can lead to a system crash during the probing routine. This issue arises when the PCI upstream bridge is not correctly identified, particularly in systems where the adapter is installed without the expected PCI-to-PCI bridge. The vulnerability can mistakenly occur in different configurations and has largely gone unnoticed during testing phases, making it crucial for system developers and users to verify their device setups to prevent potential crashes.

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