Linux Kernel Rethook Memory Leak Vulnerability

A memory leak vulnerability has been identified in the Linux kernel's rethook_alloc() function. The issue arises because the variable 'rh' is not properly freed or returned when the handler is NULL, potentially leading to a memory leak.

Impact

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