On Mon, 2011-04-04 at 23:42 -0700, Michel Lespinasse wrote: > On Mon, Apr 4, 2011 at 11:24 PM, Michael Ellerman > <mich...@ellerman.id.au> wrote: > > In access_process_vm() we need to check that we have found the right > > vma, not the following vma, before we try to access it. Otherwise > > we might call the vma's access routine with an address which does > > not fall inside the vma. > > > > Signed-off-by: Michael Ellerman <mich...@ellerman.id.au> > > Please note that the code has moved into __access_remote_vm() in > current linus tree.
Ah good point, if git hadn't done such a good job of merging it I would have noticed :) I'll send a new version with a corrected changelog. > Also, should len be truncated before calling vma->vm_ops->access() so > that we can guarantee it won't overflow past the end of the vma ? The access implementations I've looked at check len, but I guess it could be truncated on the way in. But maybe that's being paranoid, I dunno. cheers
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