Thread (11 messages) 11 messages, 2 authors, 2011-01-27

Re: [RFC] [PATCH 2.6.37-rc5-tip 5/20] 5: Uprobes: register/unregister probes.

From: Peter Zijlstra <peterz@infradead.org>
Date: 2011-01-27 10:40:49
Also in: lkml

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
right?

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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