On Mon, Jun 27, 2016 at 3:30 PM, Marcel Holtmann <marcel@xxxxxxxxxxxx> wrote: > Hi Ingo, > >>>> SMP does ECB crypto on stack buffers. This is complicated and >>>> fragile, and it will not work if the stack is virtually allocated. >>>> >>>> Switch to the crypto_cipher interface, which is simpler and safer. >>>> >>>> Cc: Marcel Holtmann <marcel@xxxxxxxxxxxx> >>>> Cc: Gustavo Padovan <gustavo@xxxxxxxxxxx> >>>> Cc: Johan Hedberg <johan.hedberg@xxxxxxxxx> >>>> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> >>>> Cc: linux-bluetooth@xxxxxxxxxxxxxxx >>>> Cc: netdev@xxxxxxxxxxxxxxx >>>> Acked-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> >>>> Acked-and-tested-by: Johan Hedberg <johan.hedberg@xxxxxxxxx> >>>> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx> >>>> --- >>>> net/bluetooth/smp.c | 67 ++++++++++++++++++++++------------------------------- >>>> 1 file changed, 28 insertions(+), 39 deletions(-) >>> >>> patch has been applied to bluetooth-next tree. >> >> Sadly carrying this separately will delay the virtual kernel stacks feature by a >> kernel cycle, because it's a must-have prerequisite. > > I can take it back out, but then I have the fear the the ECDH change to use KPP for SMP might be the one that has to wait a kernel cycle. Either way is fine with me, but I want to avoid nasty merge conflicts in the Bluetooth SMP code. Nothing goes wrong if an identical patch is queued in both places, right? Or, if you prefer not to duplicate it, could one of you commit it and the other one pull it? Ingo, given that this is patch 1 in the series and unlikely to change, if you want to make this whole thing have a separate branch in -tip, this could live there for starters. (But, if you do so, please make sure you base off a very new copy of Linus' tree -- the series is heavily dependent on the thread_info change he applied a few days ago.) --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
