On Wed, 2015-02-18 at 16:10 -0800, Davidlohr Bueso wrote:
> +static const char *tomoyo_get_exe(struct mm_struct *mm)
> +{
> +     struct file *exe_file;
> +     const char *cp = NULL;
> +
> +     if (!mm)
> +             return NULL;
> +     exe_file = get_mm_exe_file(mm);
> +     if (!exe_file)
> +             return NULL;
> +
> +     cp = tomoyo_realpath_from_path(&exe_file->f_path);

tomoyo_realpath_from_path can return NULL here, thus we'd leak the
f_path in the caller... I guess this should be:

> +     path_get(&exe_file->f_path);

        if (cp)
                path_get(&exe_file->f_path);

> +     fput(exe_file);
> +     return cp;
> +}

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