Linux Kernel Refcount Leak Vulnerability in OCMEM Handling

A refcount leak vulnerability has been identified in the Linux kernel's handling of OCMEM (On-Chip Memory) references. The issue arises in the function 'of_get_ocmemof_parse_phandle()', which returns a node pointer with an incremented reference count. If the pointer is not needed anymore, the reference count should be decremented using 'of_node_put()' to prevent a memory leak. The vulnerability has been addressed by adding the missing 'of_node_put()' call, ensuring that the reference count is properly managed.

Impact

Exploitation of this vulnerability could lead to a memory leak, where reference counts are not properly decremented, potentially causing increased memory usage and degradation of system performance over time.