Linux Kernel SCSI ALUA Path Management Memory Leak Vulnerability

A memory leak vulnerability has been identified in the Linux kernel's SCSI ALUA (Asymmetric Logical Unit Access) path management. The issue arises in the 'alua_activate()' function, where the 'qdata' variable is not properly freed if the 'alua_rtpg_queue()' call fails. This oversight leads to a memory leak, as the unreferenced 'qdata' object remains allocated but inaccessible, causing a gradual increase in memory usage.

Impact

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