CVE-2026-10773 Out-of-bounds read in DHCPv4 client message-type name lookup (net_dhcpv4_msg_type_name)

The DHCPv4 client helper netdhcpv4msgtypename in subsys/net/lib/dhcpv4/dhcpv4.c indexes a static 8-element const char name table after a faulty bounds check. The guard used msgtype = sizeofname instead of msgtype = ARRAYSIZEname; sizeof returns the byte size of the pointer array 32 on 32-bit, 64 ...