On Wed, Aug 19, 2015 at 06:37:32PM +0200, Christoph Hellwig wrote: > We have many WR opcodes that are only supported in kernel space > and/or require optional information to be copied into the WR > structure. Reject all those not explicitly handled so that we > can't pass invalid information to drivers. > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > drivers/infiniband/core/uverbs_cmd.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) Oh yes, this is absolutely needed for -stable. Reviewed-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx> AFAIK, this path is rarely (never?) actually used. I think all the drivers we have can post directly from userspace. Jason -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html