1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 42d4027f9e26..9abf66b6c271 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5192,6 +5192,8 @@ void sched_show_task(struct task_struct *p)
         int ppid;
         unsigned long state = p->state;
 
+        if (!try_get_task_stack(p))
+                return;
         if (state)
                 state = __ffs(state) + 1;
         printk(KERN_INFO "%-15.15s %c", p->comm,
@@ -5221,6 +5223,7 @@ void sched_show_task(struct task_struct *p)
 
         print_worker_info(KERN_INFO, p);
         show_stack(p, NULL);
+        put_task_stack(p);
 }
 
 void show_state_filter(unsigned long state_filter)