Linux Kernel Refcount Leak Vulnerability in cros_ec_codec

A refcount leak vulnerability has been identified in the Linux kernel's cros_ec_codec component. The issue arises in the cros_ec_codec_platform_probe_of_parse_phandle() function, which returns a node pointer with an incremented refcount. The vulnerability occurs because the refcount is not properly decremented when the node is no longer needed, leading to a memory management issue.

Impact

The vulnerability causes a memory refcount leak, which can potentially be exploited to create use-after-free conditions or other memory-related issues.