The port number is only valid if IB_QP_PORT is set in the mask.
So only check port number if it is valid to prevent modify_qp from
failing due to an invalid port number.
Fixes: 5ecce4c9b17b("Check port number supplied by user verbs cmds")
Cc: <stable@xxxxxxxxxxxxxxx> # v2.6.14+
Reviewed-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
---
drivers/infiniband/core/uverbs_cmd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 8ba9bfb..19de068 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1935,7 +1935,8 @@ static int modify_qp(struct ib_uverbs_file *file,
goto out;
}
- if (!rdma_is_port_valid(qp->device, cmd->base.port_num)) {
+ if ((cmd->base.attr_mask & IB_QP_PORT) &&
+ !rdma_is_port_valid(qp->device, cmd->base.port_num)) {
ret = -EINVAL;
goto release_qp;
}
--
2.7.4
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