Messages in this thread | | | Date | Tue, 21 Jul 2015 16:20:44 -0400 | From | Sasha Levin <> | Subject | Re: [PATCH v2 2/3] x86/ldt: Make modify_ldt optional |
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On 07/21/2015 03:59 PM, Andy Lutomirski wrote: > The modify_ldt syscall exposes a large attack surface and is > unnecessary for modern userspace. Make it optional.
Since this a "default y" option I think we need to make the implications of this a bit clearer.
Do we know what userspace would break?
Maybe add a WARN_ONCE() in a stub syscall?
Thanks, Sasha
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