Linux Kernel DSA Driver Unbinding Issue in Ocelot Tagging Protocol

CVE-2023-53855

What is CVE-2023-53855?

A vulnerability in the Linux kernel's DSA driver when utilizing the Ocelot tagging protocol can lead to improper handling during driver unbinding operations. This flaw manifests when the driver is removed while the protocol is active, potentially causing assertion failures and leaving the system in a compromised state. The bug is particularly difficult to detect as the Ocelot protocol is not the default setting, and many users might not test this unbinding path unless intentionally configured.

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