Linux Kernel USB Drivers Buffer Management Vulnerability

CVE-2026-46103

What is CVE-2026-46103?

This vulnerability involves USB drivers in the Linux kernel, where device-managed resources were not properly tied to the USB interface, leading to potential memory leaks. The improper management means that when drivers are unbound without physical disconnection of the devices, the resources remain allocated, causing inefficient memory usage. To mitigate this, improvements have been made to ensure the control message buffer is released appropriately upon driver unbinding, thereby enhancing resource management and preventing leaks in various scenarios like probe deferral or configuration changes.

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