Linux Kernel RDMA/Ionic NULL Pointer Dereference Vulnerability in Port Query Function

A vulnerability in the Linux kernel's RDMA Ionic driver could lead to a NULL pointer dereference. The issue arises in the 'ionic_query_port()' function, which calls 'ib_device_get_netdev()' without checking the return value. This oversight can cause a NULL pointer dereference if the network device is not found. The vulnerability affects the stable version of the Linux kernel.

Impact

Exploitation of this vulnerability could lead to a NULL pointer dereference, causing a kernel crash.

Remediation

The vulnerability has been fixed in the Linux kernel. Users can apply the latest patches available in the Linux kernel stable tree.