From c88fb63ed6b7dddddb74800491c84bede51fc273 Mon Sep 17 00:00:00 2001 From: Kamal Heib Date: Mon, 17 Jan 2022 21:07:42 +0800 Subject: [PATCH] RDMA/hns: Validate the pkey index mainline inclusion from mainline-v5.16-rc2 commit 2a67fcfa0db6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4QOTS CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/commit/?id=2a67fcfa0db6b4075515bd23497750849b88850f --------------------------------------------------------------------- Before query pkey, make sure that the queried index is valid. Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver") Link: https://lore.kernel.org/r/20211117145954.123893-1-kamalheib1@gmail.com Signed-off-by: Kamal Heib Signed-off-by: Jason Gunthorpe sigend-off-by: Guofeng Yue Reviewed-by: Yangyang Li Acked-by: Xie XiuQi Signed-off-by: Zheng Zengkai --- drivers/infiniband/hw/hns/hns_roce_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index 8946aa8a1f3c..8aa0af069042 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -266,6 +266,9 @@ static enum rdma_link_layer hns_roce_get_link_layer(struct ib_device *device, static int hns_roce_query_pkey(struct ib_device *ib_dev, u8 port, u16 index, u16 *pkey) { + if (index > 0) + return -EINVAL; + *pkey = PKEY_ID; return 0; -- GitLab