Hello again,
(FYI, I took the liberty to change the topic since I started the former thread "How is Win/Dos syscalls implemented in Wine?" which I feel has gone a little bit off-topic)
I had some more thoughts on the issue...
I believe most wine users trust wine not to touch anything outside of its configured drive space. Malicious Linux/Unix syscalls could be embedded in windows apps and if executed do a great deal of damage. After all checking your app is run whithin Wine is not that hard (reading registry settings for instance). Lets call such an malicious app a wine-virus from now on. At present a wine-virus would even be allowed to fork itself, leaving the wine environment and continue to run even after you shutdown the wineserver, and in some cases even after the user logs out. The virus would now have full access to the system whithin the users permission, doing much greater damage than you expected.
The question is...Would you expect that damage from running a windows app in wine, when you know it could be safely run in Windows? In just a few embedded bytes in the code it could remove your home directory in a single syscall. Would you expect that? - I wouldnt.
I really love the idea of Wine, and the fact that its working good and rather stable now does mean its gaining popularity and a broader user base, which further IMHO accelerates the wine movement. If wine users were aware of the risks of using wine at present, I believe wine would be used more cautiously.
Cant we atleast try implement some protection in wine against these attacks, before something really nasty happens. I do think company policy decissions againt using wine, will do just as much damage to the wine movement as too the free software movement at large.
I would, despite my current lack of knowledge, gladly offer my help. But I hope someone more experienced would take the lead.
Best Regards,
Peter Andersson