1 files changed, 7 insertions, 0 deletions

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 7146ea70a62d..ca937b0c3a96 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3577,6 +3577,13 @@ static bool wq_calc_node_cpumask(const struct workqueue_attrs *attrs, int node,
 
         /* yeap, return possible CPUs in @node that @attrs wants */
         cpumask_and(cpumask, attrs->cpumask, wq_numa_possible_cpumask[node]);
+
+        if (cpumask_empty(cpumask)) {
+                pr_warn_once("WARNING: workqueue cpumask: online intersect > "
+                                "possible intersect\n");
+                return false;
+        }
+
         return !cpumask_equal(cpumask, attrs->cpumask);
 
 use_dfl: