A memory leak in the mlx5_fpga_conn_create_cq() function in
drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c in the Linux kernel
before 5.3.11 allows attackers to cause a denial of service (memory
consumption) by triggering mlx5_vector2eqn() failures, aka
CID-c8c2a057fdc7.

It was discovered that the Mellanox Technologies Innova driver in the Linux
kernel did not properly deallocate memory in certain failure conditions. A
local attacker could use this to cause a denial of service (kernel memory
exhaustion).