[PATCH v3] workqueue: Fix double kfree for rescuer
From: qiang.zhang
Date: Mon May 25 2020 - 05:23:03 EST
From: Zhang Qiang <qiang.zhang@xxxxxxxxxxxxx>
The callback function "rcu_free_wq" could be called after memory
was released for "rescuer" already, Thus delete a misplaced call
of the function "kfree".
Fixes: 6ba94429c8e7 ("workqueue: Reorder sysfs code")
Signed-off-by: Zhang Qiang <qiang.zhang@xxxxxxxxxxxxx>
---
v1->v2->v3:
Only commit information modification.
kernel/workqueue.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 891ccad5f271..a2451cdcd503 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3491,7 +3491,6 @@ static void rcu_free_wq(struct rcu_head *rcu)
else
free_workqueue_attrs(wq->unbound_attrs);
- kfree(wq->rescuer);
kfree(wq);
}
--
2.24.1