Linux Kernel Missing Reference Count Management Vulnerability in ASoC Mediatek Component

A vulnerability has been identified in the Linux kernel's ASoC Mediatek component, specifically within the mt2701_wm8960_machine_probe function. The issue arises from a missing reference count management, which can lead to a memory leak. The vulnerability is related to the improper handling of a node pointer returned by the of_parse_phandle() function, which increases the reference count. The absence of a corresponding of_node_put() call creates a refcount leak.

Impact

Exploitation of this vulnerability can lead to a memory leak, where reference counts are not properly managed, potentially causing increased memory usage or other related issues.