From: ZhaoLong Wang <wangzhaolong1@huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I60L5U CVE: NA ----------------------------------------- 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> Reviewed-by: Zhang Yi <yi.zhang@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.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 7c5c962142c0..c24fd1dae458 100644 --- a/drivers/mtd/ubi/debug.c +++ b/drivers/mtd/ubi/debug.c @@ -333,7 +333,7 @@ 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[12]; int val; ubi = ubi_get_device(ubi_num); @@ -382,7 +382,7 @@ 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[14] = {0}; int val; ubi = ubi_get_device(ubi_num); -- 2.20.1