GO-2023-1841 Improper handling of non-optional LDFLAGS in go command with cgo in cmd/go

The go command may execute arbitrary code at build time when using cgo. This may occur when running "go get" on a malicious module, or when running any other command which builds untrusted code. This is can by triggered by linker flags, specified via a "cgo LDFLAGS" directive. The arguments for a...