int main(void)
{
int *array, *array3;
int x;
array = custom_alloc(sizeof(int) * 10);
array[8] = 8;
array[9] = 8;
array[10] = 10; // invalid write (ok w/o MALLOCLIKE -- in superblock)
custom_free(array); // ok
custom_free((void*)0x1); // invalid free
array3 = malloc(sizeof(int) * 10);
custom_free(array3); // mismatched free (ok without MALLOCLIKE)
make_leak();
x = array[0]; // use after free (ok without MALLOCLIKE/MAKE_MEM_NOACCESS)
// (nb: initialised because is_zeroed==1 above)
// unfortunately not identified as being in a free'd
// block because the freeing of the block and shadow
// chunk isn't postponed.
// Bug 137073: passing 0 to MALLOCLIKE_BLOCK was causing an assertion
// failure. Test for this (and likewise for FREELIKE_BLOCK).
VALGRIND_MALLOCLIKE_BLOCK(0,0,0,0);
VALGRIND_FREELIKE_BLOCK(0,0);
return x;
// leak from make_leak()
}
int main(void)
{
int* array;
int* array3;
array = custom_alloc(sizeof(int) * 10);
array[8] = 8;
array[9] = 8;
array[10] = 10; // invalid write (ok w/o MALLOCLIKE -- in superblock)
custom_free(array); // ok
custom_free(NULL); // invalid free (ok without MALLOCLIKE)
array3 = malloc(sizeof(int) * 10);
custom_free(array3); // mismatched free (ok without MALLOCLIKE)
make_leak();
return array[0]; // use after free (ok without MALLOCLIKE)
// (nb: initialised because is_zeroed==1 above)
// unfortunately not identified as being in a free'd
// block because the freeing of the block and shadow
// chunk isn't postponed.
// leak from make_leak()
}
int main(void)
{
int *array, *array3;
int x;
array = custom_alloc(sizeof(int) * 10);
array[8] = 8;
array[9] = 8;
array[10] = 10; // invalid write (ok w/o MALLOCLIKE -- in superblock)
VALGRIND_RESIZEINPLACE_BLOCK(array, sizeof(int) * 10, sizeof(int) * 5, RZ);
array[4] = 7;
array[5] = 9; // invalid write
// Make the entire array defined again such that it can be verified whether
// the red zone is marked properly when resizing in place.
VALGRIND_MAKE_MEM_DEFINED(array, sizeof(int) * 10);
VALGRIND_RESIZEINPLACE_BLOCK(array, sizeof(int) * 5, sizeof(int) * 7, RZ);
if (array[5]) array[4]++; // uninitialized read of array[5]
array[5] = 11;
array[6] = 7;
array[7] = 8; // invalid write
// invalid realloc
VALGRIND_RESIZEINPLACE_BLOCK(array+1, sizeof(int) * 7, sizeof(int) * 8, RZ);
custom_free(array); // ok
custom_free((void*)0x1); // invalid free
array3 = malloc(sizeof(int) * 10);
custom_free(array3); // mismatched free (ok without MALLOCLIKE)
make_leak();
x = array[0]; // use after free (ok without MALLOCLIKE/MAKE_MEM_NOACCESS)
// (nb: initialised because is_zeroed==1 above)
// unfortunately not identified as being in a free'd
// block because the freeing of the block and shadow
// chunk isn't postponed.
// Bug 137073: passing 0 to MALLOCLIKE_BLOCK was causing an assertion
// failure. Test for this (and likewise for FREELIKE_BLOCK).
VALGRIND_MALLOCLIKE_BLOCK(0,0,0,0);
VALGRIND_FREELIKE_BLOCK(0,0);
return x;
// leak from make_leak()
}
void make_leak(void)
{
int* array2 __attribute__((unused)) = custom_alloc(sizeof(int) * 10);
array2 = 0; // leak
return;
}
void make_leak(void)
{
int* array2 = custom_alloc(sizeof(int) * 10);
array2 = 0; // leak
return;
}
