Messages in this thread | | | Date | Sat, 09 Jan 2010 12:57:10 -0800 | From | "H. Peter Anvin" <> | Subject | Re: strict copy_from_user checks issues? |
| |
On 01/09/2010 12:01 AM, Arnd Bergmann wrote: > On Saturday 09 January 2010, H. Peter Anvin wrote: >>> return put_user(data, uptr); >>> >>> The latter form requires a macro instead of a function for the user copy, >>> but we now have that anyway because of the size check. >>> >> >> Well... we already have the latter form? > > Right, but my suggestion was to extend that do data structures in > addition to the scalars we are supporting now. > > Arnd
Structures, as in "struct"? That would seem to be a good idea. Arrays, which can be dynamically sized, are trickier.
-hpa
-- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.
| |