From 4d0deb380a5b53471cde1d8c0e0fbd1b53bfbc64 Mon Sep 17 00:00:00 2001
From: ZhaoLong Wang <wangzhaolong1@huawei.com>
Date: Tue, 26 Dec 2023 09:01:12 +0800
Subject: [PATCH] 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@huawei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
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 007f82d71020e..d57f52bd2ff3c 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);
--
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