[OE-core] [PATCH 05/12] bind: remove 5 backport patches

Robert Yang liezhi.yang at windriver.com
Fri Apr 24 07:54:12 UTC 2015


Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
---
 .../bind/bind/bind-9.8.1-CVE-2012-5166.patch       |  119 -----------------
 .../bind/bind/bind-CVE-2011-4313.patch             |   89 ------------
 .../bind/bind/bind-CVE-2012-1667.patch             |   92 -------------
 .../bind/bind/bind-CVE-2013-2266.patch             |   41 ------
 .../bind/bind/bind-Fix-CVE-2012-4244.patch         |  141 --------------------
 5 files changed, 482 deletions(-)
 delete mode 100644 meta/recipes-connectivity/bind/bind/bind-9.8.1-CVE-2012-5166.patch
 delete mode 100644 meta/recipes-connectivity/bind/bind/bind-CVE-2011-4313.patch
 delete mode 100644 meta/recipes-connectivity/bind/bind/bind-CVE-2012-1667.patch
 delete mode 100644 meta/recipes-connectivity/bind/bind/bind-CVE-2013-2266.patch
 delete mode 100644 meta/recipes-connectivity/bind/bind/bind-Fix-CVE-2012-4244.patch

diff --git a/meta/recipes-connectivity/bind/bind/bind-9.8.1-CVE-2012-5166.patch b/meta/recipes-connectivity/bind/bind/bind-9.8.1-CVE-2012-5166.patch
deleted file mode 100644
index 0abb475..0000000
--- a/meta/recipes-connectivity/bind/bind/bind-9.8.1-CVE-2012-5166.patch
+++ /dev/null
@@ -1,119 +0,0 @@
-bind_Fix_for_CVE-2012-5166
-
-Upstream-Status: Backport
-
-Reference:http://launchpadlibrarian.net/119212498/bind9_1%3A9.7.3.dfsOBg
--1ubuntu2.6_1%3A9.7.3.dfsg-1ubuntu2.7.diff.gz
-
-ISC BIND 9.x before 9.7.6-P4, 9.8.x before 9.8.3-P4, 9.9.x before
-9.9.1-P4, and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P4 allows
-remote attackers to cause a denial of service (named daemon hang)
-via unspecified combinations of resource records.
-
-http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-5166
-
-Signed-off-by: yanjun.zhu <yanjun.zhu at windriver.com>
-diff -urpN a/bin/named/query.c b/bin/named/query.c
---- a/bin/named/query.c	2012-10-22 13:24:27.000000000 +0800
-+++ b/bin/named/query.c	2012-10-22 13:17:04.000000000 +0800
-@@ -1137,13 +1137,6 @@ query_isduplicate(ns_client_t *client, d
- 		mname = NULL;
- 	}
- 
--	/*
--	 * If the dns_name_t we're looking up is already in the message,
--	 * we don't want to trigger the caller's name replacement logic.
--	 */
--	if (name == mname)
--		mname = NULL;
--
- 	*mnamep = mname;
- 
- 	CTRACE("query_isduplicate: false: done");
-@@ -1341,6 +1334,7 @@ query_addadditional(void *arg, dns_name_
- 	if (dns_rdataset_isassociated(rdataset) &&
- 	    !query_isduplicate(client, fname, type, &mname)) {
- 		if (mname != NULL) {
-+			INSIST(mname != fname);
- 			query_releasename(client, &fname);
- 			fname = mname;
- 		} else
-@@ -1401,11 +1395,13 @@ query_addadditional(void *arg, dns_name_
- 			mname = NULL;
- 			if (!query_isduplicate(client, fname,
- 					       dns_rdatatype_a, &mname)) {
--				if (mname != NULL) {
--					query_releasename(client, &fname);
--					fname = mname;
--				} else
--					need_addname = ISC_TRUE;
-+				if (mname != fname) {
-+					if (mname != NULL) {
-+						query_releasename(client, &fname);
-+						fname = mname;
-+					} else
-+						need_addname = ISC_TRUE;
-+				}
- 				ISC_LIST_APPEND(fname->list, rdataset, link);
- 				added_something = ISC_TRUE;
- 				if (sigrdataset != NULL &&
-@@ -1444,11 +1440,13 @@ query_addadditional(void *arg, dns_name_
- 			mname = NULL;
- 			if (!query_isduplicate(client, fname,
- 					       dns_rdatatype_aaaa, &mname)) {
--				if (mname != NULL) {
--					query_releasename(client, &fname);
--					fname = mname;
--				} else
--					need_addname = ISC_TRUE;
-+				if (mname != fname) {
-+					if (mname != NULL) {
-+						query_releasename(client, &fname);
-+						fname = mname;
-+					} else
-+						need_addname = ISC_TRUE;
-+				}
- 				ISC_LIST_APPEND(fname->list, rdataset, link);
- 				added_something = ISC_TRUE;
- 				if (sigrdataset != NULL &&
-@@ -1960,22 +1958,24 @@ query_addadditional2(void *arg, dns_name
- 		    crdataset->type == dns_rdatatype_aaaa) {
- 			if (!query_isduplicate(client, fname, crdataset->type,
- 					       &mname)) {
--				if (mname != NULL) {
--					/*
--					 * A different type of this name is
--					 * already stored in the additional
--					 * section.  We'll reuse the name.
--					 * Note that this should happen at most
--					 * once.  Otherwise, fname->link could
--					 * leak below.
--					 */
--					INSIST(mname0 == NULL);
--
--					query_releasename(client, &fname);
--					fname = mname;
--					mname0 = mname;
--				} else
--					need_addname = ISC_TRUE;
-+				if (mname != fname) {
-+					if (mname != NULL) {
-+						/*
-+						 * A different type of this name is
-+						 * already stored in the additional
-+						 * section.  We'll reuse the name.
-+						 * Note that this should happen at most
-+						 * once.  Otherwise, fname->link could
-+						 * leak below.
-+						 */
-+						INSIST(mname0 == NULL);
-+
-+						query_releasename(client, &fname);
-+						fname = mname;
-+						mname0 = mname;
-+					} else
-+						need_addname = ISC_TRUE;
-+				}
- 				ISC_LIST_UNLINK(cfname.list, crdataset, link);
- 				ISC_LIST_APPEND(fname->list, crdataset, link);
- 				added_something = ISC_TRUE;
diff --git a/meta/recipes-connectivity/bind/bind/bind-CVE-2011-4313.patch b/meta/recipes-connectivity/bind/bind/bind-CVE-2011-4313.patch
deleted file mode 100644
index 19d8df1..0000000
--- a/meta/recipes-connectivity/bind/bind/bind-CVE-2011-4313.patch
+++ /dev/null
@@ -1,89 +0,0 @@
-The patch to fix CVE-2011-4313
-
-Upstream-Status: Backport
-
-Reference: https://www.redhat.com/security/data/cve/CVE-2011-4313.html
-
-query.c in ISC BIND 9.0.x through 9.6.x, 9.4-ESV through 9.4-ESV-R5, 9.6-ESV
-through 9.6-ESV-R5, 9.7.0 through 9.7.4, 9.8.0 through 9.8.1, and 9.9.0a1
-through 9.9.0b1 allows remote attackers to cause a denial of service
-(assertion failure and named exit) via unknown vectors related to recursive DNS
-queries, error logging, and the caching of an invalid record by the resolver.
-
-Signed-off-by Ming Liu <ming.liu at windriver.com>
----
- bin/named/query.c |   19 ++++++++-----------
- lib/dns/rbtdb.c   |    4 ++--
- 2 files changed, 10 insertions(+), 13 deletions(-)
-
---- a/bin/named/query.c
-+++ b/bin/named/query.c
-@@ -1393,11 +1393,9 @@ query_addadditional(void *arg, dns_name_
- 			goto addname;
- 		if (result == DNS_R_NCACHENXRRSET) {
- 			dns_rdataset_disassociate(rdataset);
--			/*
--			 * Negative cache entries don't have sigrdatasets.
--			 */
--			INSIST(sigrdataset == NULL ||
--			       ! dns_rdataset_isassociated(sigrdataset));
-+			if (sigrdataset != NULL &&
-+			    dns_rdataset_isassociated(sigrdataset))
-+				dns_rdataset_disassociate(sigrdataset);
- 		}
- 		if (result == ISC_R_SUCCESS) {
- 			mname = NULL;
-@@ -1438,8 +1436,9 @@ query_addadditional(void *arg, dns_name_
- 			goto addname;
- 		if (result == DNS_R_NCACHENXRRSET) {
- 			dns_rdataset_disassociate(rdataset);
--			INSIST(sigrdataset == NULL ||
--			       ! dns_rdataset_isassociated(sigrdataset));
-+			if (sigrdataset != NULL &&
-+			    dns_rdataset_isassociated(sigrdataset))
-+				dns_rdataset_disassociate(sigrdataset);
- 		}
- 		if (result == ISC_R_SUCCESS) {
- 			mname = NULL;
-@@ -1889,10 +1888,8 @@ query_addadditional2(void *arg, dns_name
- 		goto setcache;
- 	if (result == DNS_R_NCACHENXRRSET) {
- 		dns_rdataset_disassociate(rdataset);
--		/*
--		 * Negative cache entries don't have sigrdatasets.
--		 */
--		INSIST(! dns_rdataset_isassociated(sigrdataset));
-+		if (dns_rdataset_isassociated(sigrdataset))
-+			dns_rdataset_disassociate(sigrdataset);
- 	}
- 	if (result == ISC_R_SUCCESS) {
- 		/* Remember the result as a cache */
---- a/lib/dns/rbtdb.c
-+++ b/lib/dns/rbtdb.c
-@@ -5053,7 +5053,7 @@ cache_find(dns_db_t *db, dns_name_t *nam
- 			      rdataset);
- 		if (need_headerupdate(found, search.now))
- 			update = found;
--		if (foundsig != NULL) {
-+		if (!NEGATIVE(found) && foundsig != NULL) {
- 			bind_rdataset(search.rbtdb, node, foundsig, search.now,
- 				      sigrdataset);
- 			if (need_headerupdate(foundsig, search.now))
-@@ -5596,7 +5596,7 @@ zone_findrdataset(dns_db_t *db, dns_dbno
- 	}
- 	if (found != NULL) {
- 		bind_rdataset(rbtdb, rbtnode, found, now, rdataset);
--		if (foundsig != NULL)
-+		if (!NEGATIVE(found) && foundsig != NULL)
- 			bind_rdataset(rbtdb, rbtnode, foundsig, now,
- 				      sigrdataset);
- 	}
-@@ -5685,7 +5685,7 @@ cache_findrdataset(dns_db_t *db, dns_dbn
- 	}
- 	if (found != NULL) {
- 		bind_rdataset(rbtdb, rbtnode, found, now, rdataset);
--		if (foundsig != NULL)
-+		if (!NEGATIVE(found) && foundsig != NULL)
- 			bind_rdataset(rbtdb, rbtnode, foundsig, now,
- 				      sigrdataset);
- 	}
diff --git a/meta/recipes-connectivity/bind/bind/bind-CVE-2012-1667.patch b/meta/recipes-connectivity/bind/bind/bind-CVE-2012-1667.patch
deleted file mode 100644
index c441eab..0000000
--- a/meta/recipes-connectivity/bind/bind/bind-CVE-2012-1667.patch
+++ /dev/null
@@ -1,92 +0,0 @@
-bind CVE-2012-1667
-
-Upstream-Status: Backport
-
-ISC BIND 9.x before 9.7.6-P1, 9.8.x before 9.8.3-P1, 9.9.x before 9.9.1-P1,
-and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P1 does not properly handle resource
-records with a zero-length RDATA section, which allows remote DNS servers to
-cause a denial of service (daemon crash or data corruption) or obtain
-sensitive information from process memory via a crafted record.
-
-http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-1667
-
-The cve patch comes from bind97-9.7.0-10.P2.el5_8.1.src.rpm package.
-
-Signed-off-by: Li Wang <li.wang at windriver.com>
----
- lib/dns/rdata.c     |    8 ++++----
- lib/dns/rdataslab.c |   11 ++++++++---
- 2 files changed, 12 insertions(+), 7 deletions(-)
-
-diff --git a/lib/dns/rdata.c b/lib/dns/rdata.c
-index 063b1f6..9337a80 100644
---- a/lib/dns/rdata.c
-+++ b/lib/dns/rdata.c
-@@ -325,8 +325,8 @@ dns_rdata_compare(const dns_rdata_t *rdata1, const dns_rdata_t *rdata2) {
- 
- 	REQUIRE(rdata1 != NULL);
- 	REQUIRE(rdata2 != NULL);
--	REQUIRE(rdata1->data != NULL);
--	REQUIRE(rdata2->data != NULL);
-+	REQUIRE(rdata1->length == 0 || rdata1->data != NULL);
-+	REQUIRE(rdata2->length == 0 || rdata2->data != NULL);
- 	REQUIRE(DNS_RDATA_VALIDFLAGS(rdata1));
- 	REQUIRE(DNS_RDATA_VALIDFLAGS(rdata2));
- 
-@@ -356,8 +356,8 @@ dns_rdata_casecompare(const dns_rdata_t *rdata1, const dns_rdata_t *rdata2) {
- 
- 	REQUIRE(rdata1 != NULL);
- 	REQUIRE(rdata2 != NULL);
--	REQUIRE(rdata1->data != NULL);
--	REQUIRE(rdata2->data != NULL);
-+	REQUIRE(rdata1->length == 0 || rdata1->data != NULL);
-+	REQUIRE(rdata2->length == 0 || rdata2->data != NULL);
- 	REQUIRE(DNS_RDATA_VALIDFLAGS(rdata1));
- 	REQUIRE(DNS_RDATA_VALIDFLAGS(rdata2));
- 
-diff --git a/lib/dns/rdataslab.c b/lib/dns/rdataslab.c
-index a41f16f..ed13b30 100644
---- a/lib/dns/rdataslab.c
-+++ b/lib/dns/rdataslab.c
-@@ -125,6 +125,11 @@ isc_result_t
- dns_rdataslab_fromrdataset(dns_rdataset_t *rdataset, isc_mem_t *mctx,
- 			   isc_region_t *region, unsigned int reservelen)
- {
-+	/*
-+	 * Use &removed as a sentinal pointer for duplicate
-+	 * rdata as rdata.data == NULL is valid.
-+	 */
-+	static unsigned char removed;
- 	struct xrdata  *x;
- 	unsigned char  *rawbuf;
- #if DNS_RDATASET_FIXED
-@@ -168,6 +173,7 @@ dns_rdataslab_fromrdataset(dns_rdataset_t *rdataset, isc_mem_t *mctx,
- 		INSIST(result == ISC_R_SUCCESS);
- 		dns_rdata_init(&x[i].rdata);
- 		dns_rdataset_current(rdataset, &x[i].rdata);
-+		INSIST(x[i].rdata.data != &removed);
- #if DNS_RDATASET_FIXED
- 		x[i].order = i;
- #endif
-@@ -200,8 +206,7 @@ dns_rdataslab_fromrdataset(dns_rdataset_t *rdataset, isc_mem_t *mctx,
- 	 */
- 	for (i = 1; i < nalloc; i++) {
- 		if (compare_rdata(&x[i-1].rdata, &x[i].rdata) == 0) {
--			x[i-1].rdata.data = NULL;
--			x[i-1].rdata.length = 0;
-+			x[i-1].rdata.data = &removed;
- #if DNS_RDATASET_FIXED
- 			/*
- 			 * Preserve the least order so A, B, A -> A, B
-@@ -291,7 +296,7 @@ dns_rdataslab_fromrdataset(dns_rdataset_t *rdataset, isc_mem_t *mctx,
- #endif
- 
- 	for (i = 0; i < nalloc; i++) {
--		if (x[i].rdata.data == NULL)
-+		if (x[i].rdata.data == &removed)
- 			continue;
- #if DNS_RDATASET_FIXED
- 		offsettable[x[i].order] = rawbuf - offsetbase;
--- 
-1.7.0.5
-
diff --git a/meta/recipes-connectivity/bind/bind/bind-CVE-2013-2266.patch b/meta/recipes-connectivity/bind/bind/bind-CVE-2013-2266.patch
deleted file mode 100644
index 7ec6deb..0000000
--- a/meta/recipes-connectivity/bind/bind/bind-CVE-2013-2266.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-bind: fix for CVE-2013-2266
-
-Upstream-Status: Backport
-
-libdns in ISC BIND 9.7.x and 9.8.x before 9.8.4-P2, 9.8.5 before 9.8.5b2,
-9.9.x before 9.9.2-P2, and 9.9.3 before 9.9.3b2 on UNIX platforms allows
-remote attackers to cause a denial of service (memory consumption) via a
-crafted regular expression, as demonstrated by a memory-exhaustion attack
-against a machine running a named process.
-
-http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-2266
-
-Signed-off-by Ming Liu <ming.liu at windriver.com>
----
- config.h.in  |    3 ---
- configure.in |    2 +-
- 2 files changed, 1 insertion(+), 4 deletions(-)
-
---- a/config.h.in
-+++ b/config.h.in
-@@ -277,9 +277,6 @@ int sigwait(const unsigned int *set, int
- /* Define if your OpenSSL version supports GOST. */
- #undef HAVE_OPENSSL_GOST
- 
--/* Define to 1 if you have the <regex.h> header file. */
--#undef HAVE_REGEX_H
--
- /* Define to 1 if you have the `setegid' function. */
- #undef HAVE_SETEGID
- 
---- a/configure.in
-+++ b/configure.in
-@@ -279,7 +279,7 @@ esac
- 
- AC_HEADER_STDC
- 
--AC_CHECK_HEADERS(fcntl.h regex.h sys/time.h unistd.h sys/sockio.h sys/select.h sys/param.h sys/sysctl.h net/if6.h,,,
-+AC_CHECK_HEADERS(fcntl.h sys/time.h unistd.h sys/sockio.h sys/select.h sys/param.h sys/sysctl.h net/if6.h,,,
- [$ac_includes_default
- #ifdef HAVE_SYS_PARAM_H
- # include <sys/param.h>
diff --git a/meta/recipes-connectivity/bind/bind/bind-Fix-CVE-2012-4244.patch b/meta/recipes-connectivity/bind/bind/bind-Fix-CVE-2012-4244.patch
deleted file mode 100644
index 5dd6f69..0000000
--- a/meta/recipes-connectivity/bind/bind/bind-Fix-CVE-2012-4244.patch
+++ /dev/null
@@ -1,141 +0,0 @@
-bind_Fix_for_CVE-2012-4244
-
-Upstream-Status: Backport
-
-Reference:https://bugzilla.novell.com/attachment.cgi?id=505661&action=edit
-
-ISC BIND 9.x before 9.7.6-P3, 9.8.x before 9.8.3-P3, 9.9.x before 9.9.1-P3,
- and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P3 allows remote attackers to
-cause a denial of service (assertion failure and named daemon exit) via
-a query for a long resource record.
-
-Signed-off-by: yanjun.zhu <yanjun.zhu at windriver.com>
-
-diff -urpN a/lib/dns/include/dns/rdata.h b/lib/dns/include/dns/rdata.h
---- a/lib/dns/include/dns/rdata.h	2012-10-08 12:19:42.000000000 +0800
-+++ b/lib/dns/include/dns/rdata.h	2012-10-08 11:26:43.000000000 +0800
-@@ -147,6 +147,17 @@ struct dns_rdata {
- 	(((rdata)->flags & ~(DNS_RDATA_UPDATE|DNS_RDATA_OFFLINE)) == 0)
- 
- /*
-+ * The maximum length of a RDATA that can be sent on the wire.
-+ * Max packet size (65535) less header (12), less name (1), type (2),
-+ * class (2), ttl(4), length (2).
-+ *
-+ * None of the defined types that support name compression can exceed
-+ * this and all new types are to be sent uncompressed.
-+ */
-+
-+#define DNS_RDATA_MAXLENGTH    65512U
-+
-+/*
-  * Flags affecting rdata formatting style.  Flags 0xFFFF0000
-  * are used by masterfile-level formatting and defined elsewhere.
-  * See additional comments at dns_rdata_tofmttext().
-diff -urpN a/lib/dns/master.c b/lib/dns/master.c
---- a/lib/dns/master.c	2012-10-08 12:19:42.000000000 +0800
-+++ b/lib/dns/master.c	2012-10-08 11:27:06.000000000 +0800
-@@ -75,7 +75,7 @@
- /*%
-  * max message size - header - root - type - class - ttl - rdlen
-  */
--#define MINTSIZ (65535 - 12 - 1 - 2 - 2 - 4 - 2)
-+#define MINTSIZ DNS_RDATA_MAXLENGTH 
- /*%
-  * Size for tokens in the presentation format,
-  * The largest tokens are the base64 blocks in KEY and CERT records,
-diff -urpN a/lib/dns/rdata.c b/lib/dns/rdata.c
---- a/lib/dns/rdata.c	2012-10-08 12:19:42.000000000 +0800
-+++ b/lib/dns/rdata.c	2012-10-08 11:27:27.000000000 +0800
-@@ -425,6 +425,7 @@ dns_rdata_fromwire(dns_rdata_t *rdata, d
- 	isc_buffer_t st;
- 	isc_boolean_t use_default = ISC_FALSE;
- 	isc_uint32_t activelength;
-+	size_t length;
- 
- 	REQUIRE(dctx != NULL);
- 	if (rdata != NULL) {
-@@ -455,6 +456,14 @@ dns_rdata_fromwire(dns_rdata_t *rdata, d
- 	}
- 
- 	/*
-+	 * Reject any rdata that expands out to more than DNS_RDATA_MAXLENGTH
-+	 * as we cannot transmit it.
-+	 */
-+	length = isc_buffer_usedlength(target) - isc_buffer_usedlength(&st);
-+	if (result == ISC_R_SUCCESS && length > DNS_RDATA_MAXLENGTH)
-+		result = DNS_R_FORMERR;
-+
-+	/*
- 	 * We should have consumed all of our buffer.
- 	 */
- 	if (result == ISC_R_SUCCESS && !buffer_empty(source))
-@@ -462,8 +471,7 @@ dns_rdata_fromwire(dns_rdata_t *rdata, d
- 
- 	if (rdata != NULL && result == ISC_R_SUCCESS) {
- 		region.base = isc_buffer_used(&st);
--		region.length = isc_buffer_usedlength(target) -
--				isc_buffer_usedlength(&st);
-+		region.length = length;
- 		dns_rdata_fromregion(rdata, rdclass, type, &region);
- 	}
- 
-@@ -598,6 +606,7 @@ dns_rdata_fromtext(dns_rdata_t *rdata, d
- 	unsigned long line;
- 	void (*callback)(dns_rdatacallbacks_t *, const char *, ...);
- 	isc_result_t tresult;
-+	size_t length;
- 
- 	REQUIRE(origin == NULL || dns_name_isabsolute(origin) == ISC_TRUE);
- 	if (rdata != NULL) {
-@@ -670,10 +679,13 @@ dns_rdata_fromtext(dns_rdata_t *rdata, d
- 		}
- 	} while (1);
- 
-+	length = isc_buffer_usedlength(target) - isc_buffer_usedlength(&st);
-+	if (result == ISC_R_SUCCESS && length > DNS_RDATA_MAXLENGTH)
-+		result = ISC_R_NOSPACE;
-+
- 	if (rdata != NULL && result == ISC_R_SUCCESS) {
- 		region.base = isc_buffer_used(&st);
--		region.length = isc_buffer_usedlength(target) -
--				isc_buffer_usedlength(&st);
-+		region.length = length;
- 		dns_rdata_fromregion(rdata, rdclass, type, &region);
- 	}
- 	if (result != ISC_R_SUCCESS) {
-@@ -781,6 +793,7 @@ dns_rdata_fromstruct(dns_rdata_t *rdata,
- 	isc_buffer_t st;
- 	isc_region_t region;
- 	isc_boolean_t use_default = ISC_FALSE;
-+	size_t length;
- 
- 	REQUIRE(source != NULL);
- 	if (rdata != NULL) {
-@@ -795,10 +808,13 @@ dns_rdata_fromstruct(dns_rdata_t *rdata,
- 	if (use_default)
- 		(void)NULL;
- 
-+	length = isc_buffer_usedlength(target) - isc_buffer_usedlength(&st);
-+	if (result == ISC_R_SUCCESS && length > DNS_RDATA_MAXLENGTH)
-+		result = ISC_R_NOSPACE;
-+
- 	if (rdata != NULL && result == ISC_R_SUCCESS) {
- 		region.base = isc_buffer_used(&st);
--		region.length = isc_buffer_usedlength(target) -
--				isc_buffer_usedlength(&st);
-+		region.length = length;
- 		dns_rdata_fromregion(rdata, rdclass, type, &region);
- 	}
- 	if (result != ISC_R_SUCCESS)
-diff -urpN a/lib/dns/rdataslab.c b/lib/dns/rdataslab.c
---- a/lib/dns/rdataslab.c	2012-10-08 12:19:42.000000000 +0800
-+++ b/lib/dns/rdataslab.c	2012-10-08 11:27:54.000000000 +0800
-@@ -304,6 +304,7 @@ dns_rdataslab_fromrdataset(dns_rdataset_
- 		length = x[i].rdata.length;
- 		if (rdataset->type == dns_rdatatype_rrsig)
- 			length++;
-+		INSIST(length <= 0xffff);
- 		*rawbuf++ = (length & 0xff00) >> 8;
- 		*rawbuf++ = (length & 0x00ff);
- #if DNS_RDATASET_FIXED
-- 
1.7.9.5




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