Re: [PATCH] x86, ioremap: use %pR in printk

From: Benjamin Herrenschmidt
Date: Mon Oct 20 2008 - 17:36:16 EST


On Mon, 2008-10-20 at 14:58 +0200, Johannes Berg wrote:
> On Mon, 2008-10-20 at 13:36 +0200, Ingo Molnar wrote:
>
> > + /* room for the actual number, the "0x" and the final zero */
> > + char sym[2*sizeof(phys_addr_t) + 2];
>
> Buffer overflow.

It's actually not going to overflow as we pass the end of the buffer to
"number" but we'll miss a digit.

Ben.


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