linux-kernel - Re: [patch] slob: fix memory corruption

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Message-ID: <20071115124844.GA6606@elte.hu>
Date:	Thu, 15 Nov 2007 13:48:44 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	David Miller <davem@...emloft.net>, mpm@...enic.com, rjw@...k.pl,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	torvalds@...ux-foundation.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [patch] slob: fix memory corruption


> From: Nick Piggin <npiggin@...e.de>

> -		if (free_slob_pages.next != prev->next)
> +		if (prev != free_slob_pages.prev &&
> +				free_slob_pages.next != prev->next)
>  			list_move_tail(&free_slob_pages, prev->next);

btw., exactly how did you find this bug? User-space simulation of SLOB?

	Ingo
-
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