linux/drivers/misc/lkdtm/fortify.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2020 Francis Laniel <[email protected]>
 *
 * Add tests related to fortified functions in this file.
 */
#include "lkdtm.h"
#include <linux/string.h>
#include <linux/slab.h>

static volatile int fortify_scratch_space;

static void lkdtm_FORTIFY_STR_OBJECT(void)
{ … }

static void lkdtm_FORTIFY_STR_MEMBER(void)
{ … }

static void lkdtm_FORTIFY_MEM_OBJECT(void)
{ … }

static void lkdtm_FORTIFY_MEM_MEMBER(void)
{ … }

/*
 * Calls fortified strscpy to test that it returns the same result as vanilla
 * strscpy and generate a panic because there is a write overflow (i.e. src
 * length is greater than dst length).
 */
static void lkdtm_FORTIFY_STRSCPY(void)
{ … }

static struct crashtype crashtypes[] = …;

struct crashtype_category fortify_crashtypes = …;