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Create double-free.c #8

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27 changes: 27 additions & 0 deletions double-free.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
#include <stdlib.h>

int bad_code1() {
char *var = malloc(sizeof(char) * 10);
free(var);
// ruleid: double-free
free(var);
return 0;
}

int okay_code1() {
char *var = malloc(sizeof(char) * 10);
free(var);
var = NULL;
// ok: double-free
free(var);
return 0;
}

int okay_code2() {
char *var = malloc(sizeof(char) * 10);
free(var);
var = malloc(sizeof(char) * 10);
// ok: double-free
free(var);
return 0;
}