From: <qiang.zhang@windriver.com>
To: <tj@kernel.org>
Cc: <jiangshanlai@gmail.com>, <markus.elfring@web.de>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v3] workqueue: Fix double kfree for rescuer
Date: Mon, 25 May 2020 17:30:19 +0800 [thread overview]
Message-ID: <20200525093019.2253-1-qiang.zhang@windriver.com> (raw)
From: Zhang Qiang <qiang.zhang@windriver.com>
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@windriver.com>
---
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
next reply other threads:[~2020-05-25 9:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-25 9:30 qiang.zhang [this message]
2020-05-25 10:01 ` Markus Elfring
2020-05-25 10:01 ` Markus Elfring
2020-05-26 8:56 ` Lai Jiangshan
2020-05-26 9:11 ` [v3] " Markus Elfring
2020-05-26 10:04 ` [PATCH v3] " Zhang, Qiang
2020-05-26 10:34 ` [v3] " Markus Elfring
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