linux-kernel - Re: [PATCH] IA64,sparc: local DoS with corrupted ELFs

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Date:	Wed, 6 Sep 2006 13:20:59 -0700 (PDT)
From:	Linus Torvalds <torvalds@...l.org>
To:	Kirill Korotaev <dev@...nvz.org>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Fernando Vazquez <fernando@....ntt.co.jp>,
	"David S. Miller" <davem@...emloft.net>, tony.luck@...el.com,
	linux-ia64@...r.kernel.org, stable@...nel.org, xemul@...nvz.org,
	devel@...nvz.org
Subject: Re: [PATCH] IA64,sparc: local DoS with corrupted ELFs



On Mon, 4 Sep 2006, Kirill Korotaev wrote:
> 
> +#ifdef __KERNEL__
> +#define arch_mmap_check	ia64_mmap_check
> +#ifndef __ASSEMBLY__
> +int ia64_mmap_check(unsigned long addr, unsigned long len,
> +		unsigned long flags);
> +#endif
> +#endif

Btw, is there some reason for the __ASSEMBLY__ check?

I'm not seeing any kernel users that could care, a quick

	git grep 'mman\.h' -- '*.[sS]'

doesn't trigger anything, and the other header files that include this 
seem to all either be mman.h themselves, or have things like structure 
declarations etc that wouldn't work for any non-C source anyway.

But maybe I missed some.

I'd rather not have more of those '#ifndef __ASSEMBLY__' than necessary.

		Linus
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