From: Marek Behún <marek.behun@xxxxxx> commit 3bf3c9744694803bd2d6f0ee70a6369b980530fd upstream. The input_read function declares the size of the hex array relative to sizeof(buf), but buf is a pointer argument of the function. The hex array is meant to contain hexadecimal representation of the bin array. Link: https://lore.kernel.org/r/20200215142130.22743-1-marek.behun@xxxxxx Fixes: 5bc7f990cd98 ("bus: Add support for Moxtet bus") Signed-off-by: Marek Behún <marek.behun@xxxxxx> Reported-by: sohu0106 <sohu0106@xxxxxxx> Signed-off-by: Olof Johansson <olof@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/bus/moxtet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/bus/moxtet.c +++ b/drivers/bus/moxtet.c @@ -466,7 +466,7 @@ static ssize_t input_read(struct file *f { struct moxtet *moxtet = file->private_data; u8 bin[TURRIS_MOX_MAX_MODULES]; - u8 hex[sizeof(buf) * 2 + 1]; + u8 hex[sizeof(bin) * 2 + 1]; int ret, n; ret = moxtet_spi_read(moxtet, bin);
