Re: Syscall changes registers beyond %eax, on linux-i386

From: Richard Henderson (
Date: Thu Sep 19 2002 - 14:41:17 EST

On Thu, Sep 19, 2002 at 03:40:52PM -0400, Richard B. Johnson wrote:
> Well it's not modifying those values.

It's not modifying "a", true, but it _is_ modifying the parameter
area. Which is exactly the kernel bug in question.

> It's really bad code because it could have done:
> incl $0x04(%esp)
> incl $0x08(%esp)
> incl $0x1c(%esp)
> jmp bar

Yes, I know.

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