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Date:      Wed, 20 May 2020 09:40:11 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 246596] Memory leak in ctld
Message-ID:  <bug-246596-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D246596

            Bug ID: 246596
           Summary: Memory leak in ctld
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: patrykkotlowski@gmail.com

In ucl_parse.c file there is memory leak:

int
uclparse_conf(struct conf *newconf, const char *path)
{
        struct ucl_parser *parser;
        int error;=20

        conf =3D newconf;
        parser =3D ucl_parser_new(0);

        if (!ucl_parser_add_file(parser, path)) {
                log_warn("unable to parse configuration file %s: %s", path,
                    ucl_parser_get_error(parser));
                return (1);
        }

        error =3D uclparse_toplevel(ucl_parser_get_object(parser));

        return (error);
}

ucl_parser pointer is never freed.=20

My fix proposal is following (I tested it in my production environment):


int
uclparse_conf(struct conf *newconf, const char *path)
{
        struct ucl_parser *parser;
        int error;=20

        conf =3D newconf;
        parser =3D ucl_parser_new(0);

        if (!ucl_parser_add_file(parser, path)) {
                log_warn("unable to parse configuration file %s: %s", path,
                    ucl_parser_get_error(parser));
                return (1);
        }

        ucl_object_t *p_top =3D ucl_parser_get_object(parser);
        error =3D uclparse_toplevel(p_top);

        ucl_object_unref(p_top);
        ucl_parser_free(parser);

        return (error);
}

--=20
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