capabilities: fix potential memleak on error path from vfs_getxattr_alloc()
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 v6.0.8 by commit 7480aeff0093d8c54377553ec6b31110bea37b4d, it was introduced in version v4.14 by commit 8db6c34f1dbc8e06aa016a9b829b06902c3e1340. For more details please see the references link.