tail_size is determined by several variables that come from the user so we should verify that it's not too large.
Signed-off-by: Dan Carpenter <[email protected]> diff --git a/drivers/staging/sep/sep_driver.c b/drivers/staging/sep/sep_driver.c index 8ac3fae..e624e28 100644 --- a/drivers/staging/sep/sep_driver.c +++ b/drivers/staging/sep/sep_driver.c @@ -2120,6 +2120,8 @@ static int sep_prepare_input_output_dma_table_in_dcb(struct sep_device *sep, } } if (tail_size) { + if (tail_size > sizeof(dcb_table_ptr->tail_data)) + return -EINVAL; if (is_kva == true) { memcpy(dcb_table_ptr->tail_data, (void *)(app_in_address + data_in_size - _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
