kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data coruption

An out-of-bounds OOB memory access flaw was found in the Network XDP the eXpress Data Path module in the Linux kernel's xdpumemreg function in net/xdp/xdpumem.c. When a user with special user privilege of CAPNETADMIN or root calls setsockopt to register umem ring on XDP socket, passing the headro...