libsubcmd: Fix use-after-free for realloc(..., 0)
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.268 by commit e89bb266b710ce056f141f29f091fd468a4a8185, it was introduced in version v4.5 by commit 2f4ce5ec1d447beb42143a9653716a2ab025161e. For more details please see the references link.