Linux Kernel USB PHY Tahvo Memory Leak Vulnerability in tahvo_usb_probe Function

A memory leak vulnerability has been identified in the Linux kernel's USB PHY Tahvo driver, specifically within the tahvo_usb_probe function. The issue arises when the function retrieves an interrupt request (IRQ) and encounters an error. In such cases, it fails to properly handle the error by freeing allocated memory, leading to a memory leak. This vulnerability affects the Linux kernel stable tree.

Impact

Exploitation of this vulnerability leads to a memory leak, where allocated memory is not properly released, potentially causing increased memory usage and degradation of system performance over time.

Reproduction

The vulnerability can be reproduced by loading the USB PHY Tahvo driver and triggering the tahvo_usb_probe function. If the function encounters an error while retrieving the IRQ, it will return without freeing previously allocated memory, creating a memory leak.

Remediation

Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been addressed.