leak test

# gcc leak.c -o leak -fsanitize=address -static-libasan
# ./leak

string is: Hello world!

=================================================================
==19293==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 100 byte(s) in 1 object(s) allocated from:
    #0 0x563f80c07c20 in malloc (/home/ansible/test/leak+0xcfc20)
    #1 0x563f80c43f31 in main (/home/ansible/test/leak+0x10bf31)
    #2 0x7f8fec9a109a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2409a)

SUMMARY: AddressSanitizer: 100 byte(s) leaked in 1 allocation(s).

# cat leak.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, const char *argv[]) {
    char *s = malloc(100);
    strcpy(s, "Hello world!");
    printf("string is: %s\n", s);
    return 0;
}