From 8619e94d3be376bb5e8f20988c0e6e3309d2b09a Mon Sep 17 00:00:00 2001
From: ye xingchen <ye.xingchen@zte.com.cn>
Date: Wed, 21 Sep 2022 09:35:17 +0000
Subject: [PATCH] cgroup: use strscpy() is more robust and safer
The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL terminated strings.
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
kernel/cgroup/cgroup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index c37b8265c0a38..151c55d2e0160 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2374,7 +2374,7 @@ int task_cgroup_path(struct task_struct *task, char *buf, size_t buflen)
ret = cgroup_path_ns_locked(cgrp, buf, buflen, &init_cgroup_ns);
} else {
/* if no hierarchy exists, everyone is in "/" */
- ret = strlcpy(buf, "/", buflen);
+ ret = strscpy(buf, "/", buflen);
}
spin_unlock_irq(&css_set_lock);
--
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