On Sun, May 28, 2017 at 1:15 AM, Christoph Hellwig <h...@infradead.org> wrote: > On Fri, May 26, 2017 at 01:17:12PM -0700, Kees Cook wrote: >> The NIU ethernet driver intentionally stores a page struct pointer on >> top of the "mapping" field. Whitelist this case: >> >> drivers/net/ethernet/sun/niu.c: In function ‘niu_rx_pkt_ignore’: >> drivers/net/ethernet/sun/niu.c:3402:10: note: found mismatched ssa struct >> pointer types: ‘struct page’ and ‘struct address_space’ >> >> *link = (struct page *) page->mapping; >> ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> >> Cc: David S. Miller <da...@davemloft.net> >> Signed-off-by: Kees Cook <keesc...@chromium.org> > > The driver really needs to stop doing this anyway. It would be good > to send this out to linux-mm and netdev to come up with a better scheme.
Added to To. :) I couldn't understand why it was doing what it was doing, hence the whitelist entry. -Kees -- Kees Cook Pixel Security
