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-rw-r--r--net/rds/rdma_transport.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c
index 46bce8389066..ff74c4bbb9fc 100644
--- a/net/rds/rdma_transport.c
+++ b/net/rds/rdma_transport.c
@@ -112,17 +112,20 @@ static int rds_rdma_cm_event_handler_cmn(struct rdma_cm_id *cm_id,
if (!conn)
break;
err = (int *)rdma_consumer_reject_data(cm_id, event, &len);
- if (!err || (err && ((*err) == RDS_RDMA_REJ_INCOMPAT))) {
+ if (!err ||
+ (err && len >= sizeof(*err) &&
+ ((*err) <= RDS_RDMA_REJ_INCOMPAT))) {
pr_warn("RDS/RDMA: conn <%pI6c, %pI6c> rejected, dropping connection\n",
&conn->c_laddr, &conn->c_faddr);
- conn->c_proposed_version = RDS_PROTOCOL_COMPAT_VERSION;
- conn->c_tos = 0;
+
+ if (!conn->c_tos)
+ conn->c_proposed_version = RDS_PROTOCOL_COMPAT_VERSION;
+
rds_conn_drop(conn);
}
rdsdebug("Connection rejected: %s\n",
rdma_reject_msg(cm_id, event->status));
break;
- /* FALLTHROUGH */
case RDMA_CM_EVENT_ADDR_ERROR:
case RDMA_CM_EVENT_ROUTE_ERROR:
case RDMA_CM_EVENT_CONNECT_ERROR: