linux-kernel - Re: [Patch v2] mm: slab: Verify the nodeid passed to ____cache_alloc

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Message-ID: <alpine.DEB.2.02.1304231616270.3855@chino.kir.corp.google.com>
Date:	Tue, 23 Apr 2013 16:16:44 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Aaron Tomlin <atomlin@...hat.com>
cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org, cl@...ux.com,
	penberg@...nel.org, Rik <riel@...hat.com>,
	Rafael Aquini <aquini@...hat.com>
Subject: Re: [Patch v2] mm: slab: Verify the nodeid passed to
 ____cache_alloc_node

On Tue, 23 Apr 2013, Aaron Tomlin wrote:

> mm: slab: Verify the nodeid passed to ____cache_alloc_node
>     
> If the nodeid is > num_online_nodes() this can cause an
> Oops and a panic(). The purpose of this patch is to assert
> if this condition is true to aid debugging efforts rather
> than some random NULL pointer dereference or page fault.
>     
> Signed-off-by: Aaron Tomlin <atomlin@...hat.com>
> Reviewed-by: Rik van Riel <riel@...hat.com>
> 

Acked-by: David Rientjes <rientjes@...gle.com>
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