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https://github.com/GrapheneOS/hardened_malloc.git
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9ca3279507
C23 declared calling realloc(3) with a non-NULL pointer and zero size Undefined behavior. Check that hardened_malloc handles that case sanely by free'ing the old pointer and returning a special pointer, like `malloc(3)` called with size zero.
21 lines
257 B
C
21 lines
257 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include "test_util.h"
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OPTNONE int main(void) {
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char *p, *q, *r;
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p = malloc(256 * 1024);
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if (!p) {
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return 1;
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}
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q = realloc(p, 0);
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printf("%c\n", *p);
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free(q);
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return 0;
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}
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