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Message-ID: <20231020064803.643399-5-wangzhaolong1@huawei.com>
Date: Fri, 20 Oct 2023 14:48:02 +0800
From: ZhaoLong Wang <wangzhaolong1@...wei.com>
To: <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>
CC: <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
<chengzhihao1@...wei.com>, <wangzhaolong1@...wei.com>,
<yi.zhang@...wei.com>, <yangerkun@...wei.com>
Subject: [PATCH v3 4/5] ubi: Reserve sufficient buffer length for the input mask
Because the mask received by the emulate_failures interface
is a 32-bit unsigned integer, ensure that there is sufficient
buffer length to receive and display this value.
Signed-off-by: ZhaoLong Wang <wangzhaolong1@...wei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@...wei.com>
---
drivers/mtd/ubi/debug.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index e8aa1827f23a..b4f40cd2bdaf 100644
--- a/drivers/mtd/ubi/debug.c
+++ b/drivers/mtd/ubi/debug.c
@@ -332,7 +332,7 @@ static ssize_t dfs_file_read(struct file *file, char __user *user_buf,
struct dentry *dent = file->f_path.dentry;
struct ubi_device *ubi;
struct ubi_debug_info *d;
- char buf[8];
+ char buf[16];
int val;
ubi = ubi_get_device(ubi_num);
@@ -400,7 +400,7 @@ static ssize_t dfs_file_write(struct file *file, const char __user *user_buf,
struct ubi_device *ubi;
struct ubi_debug_info *d;
size_t buf_size;
- char buf[8] = {0};
+ char buf[16] = {0};
int val;
ubi = ubi_get_device(ubi_num);
--
2.31.1
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