"GNU Compiler Collection" V.A. install in VDS a wrong file called bin/su:
-rwsr-xr-x 12 root root 53024 Jun 20 14:51 bin/su.
This bug is fixed in SDL 4.1.1. (file removed)
A manual fix was added to SDL 4.1 installation guide:
After initialization of "GNU Compiler Collection" VA by SD admin, file /plugins/packages/GNU_Compiler_Collection/MIRROR/coreutils-5.2.1-31.2/bin/su should be removed from the VA repository.