Re: [RFC] [PATCH 2.6.37-rc5-tip 11/20] 11: uprobes: slotallocation for uprobes
From: Peter Zijlstra
Date: Tue Jan 25 2011 - 08:56:52 EST
On Thu, 2010-12-16 at 15:29 +0530, Srikar Dronamraju wrote:
> + /*
> + * We keep the vma's vm_start rather than a pointer to the vma
> + * itself. The probed process or a naughty kernel module could make
> + * the vma go away, and we must handle that reasonably gracefully.
> + */
> + unsigned long vaddr; /* Page(s) of instruction slots */
You could simply refuse to let the user unmap that area and rogue kernel
modules aren't something you can do anything about anyway.
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