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 v4.9.303 by commit 3c5ba8d82f5c4df4fbe30e6c5fff49853dad19d1, it was introduced in version v4.5 by commit 2f4ce5ec1d447beb42143a9653716a2ab025161e. For more details please see the references link.