Re: [RFC] [PATCH 2.6.37-rc5-tip 5/20] 5: Uprobes:register/unregister probes.
From: Peter Zijlstra
Date: Thu Jan 27 2011 - 05:40:52 EST
On Thu, 2011-01-27 at 15:55 +0530, Srikar Dronamraju wrote:
> If its not at the exact same location, then our third validation of
> checking that (vaddr == vma->vm_start + uprobe->offset) should fail
> Also should it be (vaddr == uprobe->offset + vma->vm_start -
> vma->pgoff << PAGE_SHIFT) ?
Yeah, although I just realized that ->offset should be a u64, since
pgoff is a unsigned long, we can have files up to 44 bit (assuming the
page-size is 12bits).
But yes, this matches the validation I mentioned.
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