Linux Kernel DAMON Memory Leak Vulnerability in Reclaim Initialization

A memory leak vulnerability has been identified in the Linux kernel's DAMON (Data Access Monitor) subsystem. The issue arises in the 'damon_reclaim_init()' function, which allocates memory for a context ('ctx') using 'damon_new_ctx()'. If 'damon_select_ops()' fails, the allocated 'ctx' is not released, leading to a memory leak. The vulnerability has been addressed by ensuring that 'damon_destroy_ctx()' is called to release the memory when 'damon_select_ops()' fails.

Impact

Exploitation of this vulnerability could lead to a memory leak, causing increased memory usage and potential degradation of system performance over time.