Linux Kernel RDMA/SIW Slab Use-After-Free Vulnerability

A use-after-free vulnerability in the Linux kernel's RDMA/SIW component has been addressed. The issue arose from a poorly managed direct link to net_device, which caused a 'KASAN: slab-use-after-free' exception during the siw_query_port() call. The vulnerability has been resolved by removing the direct link and relying on the net_device management of associated ib_devices, thereby eliminating redundant local management.

Impact

Exploitation of this vulnerability could lead to a use-after-free condition, potentially allowing for arbitrary code execution or memory corruption.