Linux Kernel Kprobe Memory Leak Vulnerability

A memory leak vulnerability has been identified in the Linux kernel's kprobe tracing functionality. The issue arises in the 'test_gen_kprobe_cmd()' and 'test_gen_kretprobe_cmd()' functions, where a buffer allocated memory is not properly freed in the absence of a failure, leading to a memory leak. The vulnerability has been addressed by moving the memory deallocation to a common path, ensuring that the buffer is freed regardless of the function's execution outcome.

Impact

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