[krbdev.mit.edu #8700] Resource leak in krb5int_get_fq_local_hostname()

[Bean Zhang via RT]

Hi Team,

In krb5int_get_fq_local_hostname() of krb5-1.16.1/src/lib/krb5/os/hostrealm.c,
When calls getaddrinfo(), will store the allocated memory to ai,
later if strlcpy() fails, this function returns without freeing the memory that ai points to.

The fix is to call "freeaddrinfo(ai)" if this function returns on calling strlcpy() failure.

Could someone help to take a look?

Thanks,
Bean