From: ZhaoLong Wang Date: Tue, 26 Dec 2023 01:01:12 +0000 (+0800) Subject: ubi: Reserve sufficient buffer length for the input mask X-Git-Tag: v6.8-rc1~87^2~3 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4d0deb380a5b53471cde1d8c0e0fbd1b53bfbc64;p=thirdparty%2Fkernel%2Flinux.git 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 Reviewed-by: Zhihao Cheng Signed-off-by: Richard Weinberger --- 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);