1 files changed, 7 insertions, 0 deletions

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ed2ab474ec93..d3f3094856fe 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -8043,6 +8043,13 @@ static int should_we_balance(struct lb_env *env)
         int cpu, balance_cpu = -1;
 
         /*
+         * Ensure the balancing environment is consistent; can happen
+         * when the softirq triggers 'during' hotplug.
+         */
+        if (!cpumask_test_cpu(env->dst_cpu, env->cpus))
+                return 0;
+
+        /*
          * In the newly idle case, we will allow all the cpu's
          * to do the newly idle load balance.
          */