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[Xen-bugs] [Bug 1092] an unprivileged guest can crash a 3.1.0 hypervisor
| To: | xen-bugs@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-bugs] [Bug 1092] an unprivileged guest can crash a 3.1.0 hypervisor |
| From: | bugzilla-daemon@xxxxxxxxxxxxxxxxxxx |
| Date: | Sat, 20 Oct 2007 10:39:10 -0700 |
| Delivery-date: | Sat, 20 Oct 2007 10:39:38 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxx |
| In-reply-to: | <bug-1092-3@xxxxxxxxxxxxxxxxxxxxxxxxxxx/bugzilla/> |
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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 |
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