Re: [PATCH] mm: use %pK for /proc/vmallocinfo

From: David Rientjes
Date: Wed Oct 03 2012 - 01:13:19 EST


On Tue, 2 Oct 2012, Kees Cook wrote:

> In the paranoid case of sysctl kernel.kptr_restrict=2, mask the kernel
> virtual addresses in /proc/vmallocinfo too.
>
> Reported-by: Brad Spengler <spender@xxxxxxxxxxxxxx>
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>

/proc/vmallocinfo is S_IRUSR, not S_IRUGO, so exactly what are you trying
to protect?
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