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kasantest: Add a test set for global variable out of bounds detection

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Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
This commit is contained in:
wangmingrong1 2024-09-06 11:14:28 +08:00 committed by Xiang Xiao
parent 277c968b6a
commit f2c21b11d8
2 changed files with 29 additions and 1 deletions
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1
testing/kasantest/Makefile
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@ -29,5 +29,6 @@ STACKSIZE = $(CONFIG_DEFAULT_TASK_STACKSIZE)
CFLAGS += -Wno-error -Wno-use-after-free
CFLAGS += -Wno-array-bounds -Wno-free-nonheap-object
CFLAGS += -Wno-stringop-overflow
include $(APPDIR)/Application.mk

29
testing/kasantest/kasantest.c
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@ -72,6 +72,11 @@ static bool test_heap_memset(FAR struct mm_heap_s *heap, size_t size);
static bool test_heap_memcpy(FAR struct mm_heap_s *heap, size_t size);
static bool test_heap_memmove(FAR struct mm_heap_s *heap, size_t size);
#ifdef CONFIG_MM_KASAN_GLOBAL
static bool test_global_underflow(FAR struct mm_heap_s *heap, size_t size);
static bool test_global_overflow(FAR struct mm_heap_s *heap, size_t size);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
@ -87,11 +92,19 @@ const static testcase_t g_kasan_test[] =
{test_heap_unpoison, "heap unpoison"},
{test_heap_memset, "heap memset"},
{test_heap_memcpy, "heap memcpy"},
{test_heap_memmove, "heap memmove"}
{test_heap_memmove, "heap memmove"},
#ifdef CONFIG_MM_KASAN_GLOBAL
{test_global_underflow, "globals underflow"},
{test_global_overflow, "globals overflow"},
#endif
};
static char g_kasan_heap[65536] aligned_data(8);
#ifdef CONFIG_MM_KASAN_GLOBAL
static char g_kasan_globals[32];
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
@ -210,6 +223,20 @@ static bool test_heap_memmove(FAR struct mm_heap_s *heap, size_t size)
return false;
}
#ifdef CONFIG_MM_KASAN_GLOBAL
static bool test_global_underflow(FAR struct mm_heap_s *heap, size_t size)
{
memset(g_kasan_globals - 31, 0x12, sizeof(g_kasan_globals));
return false;
}
static bool test_global_overflow(FAR struct mm_heap_s *heap, size_t size)
{
memset(g_kasan_globals, 0xef, sizeof(g_kasan_globals) + 31);
return false;
}
#endif
static int run_test(FAR const testcase_t *test)
{
size_t heap_size = 65536;