On Mon, Mar 11, 2013 at 12:27:16PM -0700, Kees Cook wrote: > It is possible to wrap the counter used to allocate the buffer for > relocation copies. This could lead to heap writing overflows.
Seems a sensible check, just in the wrong location. You need to do the checking upfront in validate_exec_list() so that the error condition is always hit and that the limits are applied consistently to all execbuffers. -Chris -- Chris Wilson, Intel Open Source Technology Centre
