From: Xin Hao <xhao@linux.alibaba.com>
To: sjpark@amazon.de
Cc: xhao@linux.alibaba.com, akpm@linux-foundation.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH] mm/damon: Adjust the size of kbuf array to avoid overflow
Date: Wed, 13 Oct 2021 19:48:54 +0800 [thread overview]
Message-ID: <20211013114854.15705-1-xhao@linux.alibaba.com> (raw)
In order to avoid the 'count' size space of kbuf array is
used up, but a "\0" is still added.
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
---
mm/damon/dbgfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index faee070977d8..20c61eed54af 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -247,7 +247,7 @@ static ssize_t dbgfs_kdamond_pid_read(struct file *file,
char *kbuf;
ssize_t len;
- kbuf = kmalloc(count, GFP_KERNEL);
+ kbuf = kmalloc(count + 1, GFP_KERNEL);
if (!kbuf)
return -ENOMEM;
--
2.31.0
next reply other threads:[~2021-10-13 11:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-13 11:48 Xin Hao [this message]
2021-10-13 14:02 ` SeongJae Park
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