Messages in this thread | | | From | Andy Lutomirski <> | Date | Mon, 27 Jul 2015 08:53:54 -0700 | Subject | Re: [PATCH v4 0/3] x86: modify_ldt improvement, test, and config option |
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On Mon, Jul 27, 2015 at 8:36 AM, Boris Ostrovsky <boris.ostrovsky@oracle.com> wrote: > On 07/25/2015 01:36 AM, Andy Lutomirski wrote: >> >> Here's v3. It fixes the "dazed and confused" issue, I hope. It's also >> probably a good general attack surface reduction, and it replaces some >> scary code with IMO less scary code. >> >> Also, servers and embedded systems should probably turn off modify_ldt. >> This makes that possible. >> >> Xen people, can you take a look at this? >> >> Willy and Kees: I left the config option alone. The -tiny people will >> like it, and we can always add a sysctl of some sort later. >> >> Changes from v3: >> - Hopefully fixed Xen. > > > 32b-on-32b fails in the same manner. (but non-zero LDT is taken care of) > >> - Fixed 32-bit test case on 32-bit native kernel. > > > I am not sure I see what changed.
I misplaced the fix in the wrong git commit, so I failed to sent it. Oops.
I just sent v4.1 of patch 3. Can you try that?
> > -boris
-- Andy Lutomirski AMA Capital Management, LLC
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