Re: [tip:x86/vdso] x86/vdso32/syscall.S: Do not load __USER32_DS to %ss

Borislav Petkov
2015-04-23T09:56:46Z

On Thu, Apr 23, 2015 at 11:20:56AM +0200, Denys Vlasenko wrote:
> * what if %ss before syscall was NOT the usual value of 0x2b, but some
> other segment, not the typical 0-base, 0xffffffff limit 32-bit expand-up one?
> Not restoring proper %ss would not go well.
> [but then, Intel CPUs work, and old code worked....]

Have we run the exact same reproducer on Intel already?

Brian, can you run the same thing on an Intel box, if you haven't done
so already?

Thanks.

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Regards/Gruss,
Boris.

ECO tip #101: Trim your mails when you reply.
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