CVE-2025-37955 is a medium severity vulnerability in the Linux kernel's virtio-net driver. It involves a memory leak caused by failure to free xsk_buffs on error paths in the virtnet_xsk_pool_enable() function. This flaw was identified through continuous integration selftests and affects kernel memory management related to XDP socket buffer pools. The vulnerability does not impact confidentiality or integrity but can lead to resource exhaustion (availability impact).