Linux Kernel Refcount Leak Vulnerability in AM65 CPSW NUSS Ethernet Driver

A refcount leak vulnerability has been identified in the Linux kernel's AM65 CPSW NUSS Ethernet driver. The issue arises because the function 'of_get_child_by_name()' returns a node pointer with an incremented reference count, which is not properly released in error cases within the 'am65_cpsw_init_cpts()' and 'am65_cpsw_nuss_probe()' functions. This oversight can lead to a memory management issue by leaking reference counts.

Impact

The vulnerability causes a memory refcount leak, which can lead to improper memory management and potential resource exhaustion.