BACKPORT: binder: add function to copy binder object from buffer
When creating or tearing down a transaction, the binder driver examines objects in the buffer and takes appropriate action. To do this without needing to dereference pointers into the buffer, the local copies of the objects are needed. This patch introduces a function to validate and copy binder objects from the buffer to a local structure. (cherry pick from commit 7a67a39320dfba4b36d3be5dae4581194e650316) Bug: 67668716 Signed-off-by:Todd Kjos <tkjos@google.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Change-Id: I42dfe238a2d20bdeff479068ca87a80e4577e64a
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