From: Kamal Heib Date: Mon, 23 Sep 2019 10:41:58 +0000 (+0300) Subject: RDMA/rxe: Verify modify_device mask X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f3fceba5da5e149ecd8e58c1e1c60464629de27b;p=linux.git RDMA/rxe: Verify modify_device mask Verify that the passed mask to rxe_modify_device() is supported. Link: https://lore.kernel.org/r/20190923104158.5331-4-kamalheib1@gmail.com Signed-off-by: Kamal Heib Signed-off-by: Jason Gunthorpe --- diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c index 623129f27f5a1..fa47bdcc7f54f 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -106,6 +106,10 @@ static int rxe_modify_device(struct ib_device *dev, { struct rxe_dev *rxe = to_rdev(dev); + if (mask & ~(IB_DEVICE_MODIFY_SYS_IMAGE_GUID | + IB_DEVICE_MODIFY_NODE_DESC)) + return -EOPNOTSUPP; + if (mask & IB_DEVICE_MODIFY_SYS_IMAGE_GUID) rxe->attr.sys_image_guid = cpu_to_be64(attr->sys_image_guid);