Messages in this thread | | | Subject | Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels | From | "H. Peter Anvin" <> | Date | Sat, 12 Apr 2014 12:44:42 -0700 |
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Run a 32-bit VM. The 32-bit kernel does this right.
I suspect it would also work fine in a Qemu user mode guest (is this supported by KVM?), in a ReactOS VM, or some other number of combinations.
The real question is how many real users are actually affected.
On April 12, 2014 12:35:41 PM PDT, Borislav Petkov <bp@alien8.de> wrote: >On Sat, Apr 12, 2014 at 10:18:25AM -0700, H. Peter Anvin wrote: >> So Wine regressed and noone noticed? They doesn't sound like an >active >> user base. > >Btw, wouldn't this obscure use case simply work in a KVM guest with a >kernel <= 3.14? > >Because if so, we simply cut it at 3.14, everything newer has the leak >fix and people who still want to play phone games on a x86 machine, can >do so in a guest with an older kernel. Everybody's happy.
-- Sent from my mobile phone. Please pardon brevity and lack of formatting.
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