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SubjectRe: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels
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On Sat, Apr 12, 2014 at 12:44 PM, H. Peter Anvin <hpa@zytor.com> wrote:
> Run a 32-bit VM. The 32-bit kernel does this right.

I really don't think that's the answer.

If people really run these 16-bit programs, we need to allow it.
Clearly it used to work.

Just make the unconditional "don't allow 16-bit segments" be a sysconf entry.

Linus


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