[Xen-bugs] [Bug 1092] an unprivileged guest can crash a 3.1.0 hypervisor

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1092


bouyer@xxxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bouyer@xxxxxxxxxx




------- Comment #1 from bouyer@xxxxxxxxxx  2007-10-20 10:39 -------
(In reply to comment #0)
> While working on NetBSD/amd64 Xen support, I found that if the %cs and/or %ss
> registers are changed to e.g. 0x17 in the trap frame before HYPERVISOR_iret

It's setting %cs to 0x17 which makes it crash (it's not a text segment). %ss
can be set to 0x17 without troubles.


-- 
Configure bugmail: 
http://bugzilla.xensource.com/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

_______________________________________________
Xen-bugs mailing list
Xen-bugs@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-bugs