Linux Kernel AMT Memory Leak Vulnerability

A memory leak vulnerability has been identified in the Linux kernel's AMT (Automatic Multicast Tunneling) implementation. The issue arises in the 'amt_rcv()' function, where received packets are not properly managed. If a socket is not found for a received packet, the corresponding skb (socket buffer) should be freed. However, the current implementation fails to do so, leading to a potential memory leak.

Impact

Exploitation of this vulnerability can 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.