[dunfell 08/17] samba: upgrade 4.10.17 -> 4.10.18

["akuster" <akuster808@gmail.com>]

From: Yi Zhao <yi.zhao@windriver.com>

This is security release in order to address CVE-2020-1472
(Unauthenticated domain takeover via netlogon ("ZeroLogon")).

See: https://www.samba.org/samba/history/samba-4.10.18.html

Also remove 3 backported patches.

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit bebdea8530652ff698885a3f55b0a650de319379)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
---
 .../0001-util-Simplify-input-validation.patch | 59 --------------
 ...n-FreeBSD-by-avoiding-NSS_BUFLEN_PAS.patch | 79 -------------------
 ...larger-buffer-if-getpwuid_r-returns-.patch | 50 ------------
 .../{samba_4.10.17.bb => samba_4.10.18.bb}    |  7 +-
 4 files changed, 2 insertions(+), 193 deletions(-)
 delete mode 100644 meta-networking/recipes-connectivity/samba/samba/0001-util-Simplify-input-validation.patch
 delete mode 100644 meta-networking/recipes-connectivity/samba/samba/0002-util-Fix-build-on-FreeBSD-by-avoiding-NSS_BUFLEN_PAS.patch
 delete mode 100644 meta-networking/recipes-connectivity/samba/samba/0003-util-Reallocate-larger-buffer-if-getpwuid_r-returns-.patch
 rename meta-networking/recipes-connectivity/samba/{samba_4.10.17.bb => samba_4.10.18.bb} (97%)

diff --git a/meta-networking/recipes-connectivity/samba/samba/0001-util-Simplify-input-validation.patch b/meta-networking/recipes-connectivity/samba/samba/0001-util-Simplify-input-validation.patch
deleted file mode 100644
index e724c04bcd2..00000000000
--- a/meta-networking/recipes-connectivity/samba/samba/0001-util-Simplify-input-validation.patch
+++ /dev/null
@@ -1,59 +0,0 @@
-From f9d9ba6cd06aca053c747c399ba700db80b1623c Mon Sep 17 00:00:00 2001
-From: Martin Schwenke <martin@meltin.net>
-Date: Tue, 9 Jun 2020 11:52:50 +1000
-Subject: [PATCH 1/3] util: Simplify input validation
-
-It appears that snprintf(3) is being used for input validation.
-However, this seems like overkill because it causes szPath to be
-copied an extra time.  The mostly likely protections being sought
-here, according to https://cwe.mitre.org/data/definitions/20.html,
-look to be DoS attacks involving CPU and memory usage.  A simpler
-check that uses strnlen(3) can mitigate against both of these and is
-simpler.
-
-Signed-off-by: Martin Schwenke <martin@meltin.net>
-Reviewed-by: Volker Lendecke <vl@samba.org>
-Reviewed-by: Bjoern Jacke <bjacke@samba.org>
-(cherry picked from commit 922bce2668994dd2a5988c17060f977e9bb0c229)
-
-Upstream-Status:Backport
-[https://gitlab.com/samba-team/samba/-/commit/f9d9ba6cd06aca053c747c399ba700db80b1623c]
-
-Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
----
- lib/util/util_paths.c | 9 ++++-----
- 1 file changed, 4 insertions(+), 5 deletions(-)
-
-diff --git a/lib/util/util_paths.c b/lib/util/util_paths.c
-index c0ee5c32c30..dec91772d9e 100644
---- a/lib/util/util_paths.c
-+++ b/lib/util/util_paths.c
-@@ -69,21 +69,20 @@ static char *get_user_home_dir(TALLOC_CTX *mem_ctx)
- 	struct passwd pwd = {0};
- 	struct passwd *pwdbuf = NULL;
- 	char buf[NSS_BUFLEN_PASSWD] = {0};
-+	size_t len;
- 	int rc;
- 
- 	rc = getpwuid_r(getuid(), &pwd, buf, NSS_BUFLEN_PASSWD, &pwdbuf);
- 	if (rc != 0 || pwdbuf == NULL ) {
--		int len_written;
- 		const char *szPath = getenv("HOME");
- 		if (szPath == NULL) {
- 			return NULL;
- 		}
--		len_written = snprintf(buf, sizeof(buf), "%s", szPath);
--		if (len_written >= sizeof(buf) || len_written < 0) {
--			/* Output was truncated or an error. */
-+		len = strnlen(szPath, PATH_MAX);
-+		if (len >= PATH_MAX) {
- 			return NULL;
- 		}
--		return talloc_strdup(mem_ctx, buf);
-+		return talloc_strdup(mem_ctx, szPath);
- 	}
- 
- 	return talloc_strdup(mem_ctx, pwd.pw_dir);
--- 
-2.17.1
-
diff --git a/meta-networking/recipes-connectivity/samba/samba/0002-util-Fix-build-on-FreeBSD-by-avoiding-NSS_BUFLEN_PAS.patch b/meta-networking/recipes-connectivity/samba/samba/0002-util-Fix-build-on-FreeBSD-by-avoiding-NSS_BUFLEN_PAS.patch
deleted file mode 100644
index dcd79044ae9..00000000000
--- a/meta-networking/recipes-connectivity/samba/samba/0002-util-Fix-build-on-FreeBSD-by-avoiding-NSS_BUFLEN_PAS.patch
+++ /dev/null
@@ -1,79 +0,0 @@
-From 57bd719af1f138f44f71b2078995452582da0da6 Mon Sep 17 00:00:00 2001
-From: Martin Schwenke <martin@meltin.net>
-Date: Fri, 5 Jun 2020 21:52:23 +1000
-Subject: [PATCH 2/3] util: Fix build on FreeBSD by avoiding NSS_BUFLEN_PASSWD
-
-NSS_BUFLEN_PASSWD is not defined on FreeBSD.  Use
-sysconf(_SC_GETPW_R_SIZE_MAX) instead, as per POSIX.
-
-Use a dynamically allocated buffer instead of trying to cram all of
-the logic into the declarations.  This will come in useful later
-anyway.
-
-Signed-off-by: Martin Schwenke <martin@meltin.net>
-Reviewed-by: Volker Lendecke <vl@samba.org>
-Reviewed-by: Bjoern Jacke <bjacke@samba.org>
-(cherry picked from commit 847208cd8ac68c4c7d1dae63767820db1c69292b)
-
-Upstream-Status:Backport
-[https://gitlab.com/samba-team/samba/-/commit/57bd719af1f138f44f71b2078995452582da0da6]
-
-Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
----
- lib/util/util_paths.c | 27 ++++++++++++++++++++++-----
- 1 file changed, 22 insertions(+), 5 deletions(-)
-
-diff --git a/lib/util/util_paths.c b/lib/util/util_paths.c
-index dec91772d9e..9bc6df37e5d 100644
---- a/lib/util/util_paths.c
-+++ b/lib/util/util_paths.c
-@@ -68,24 +68,41 @@ static char *get_user_home_dir(TALLOC_CTX *mem_ctx)
- {
- 	struct passwd pwd = {0};
- 	struct passwd *pwdbuf = NULL;
--	char buf[NSS_BUFLEN_PASSWD] = {0};
-+	char *buf = NULL;
-+	char *out = NULL;
-+	long int initlen;
- 	size_t len;
- 	int rc;
- 
--	rc = getpwuid_r(getuid(), &pwd, buf, NSS_BUFLEN_PASSWD, &pwdbuf);
-+	initlen = sysconf(_SC_GETPW_R_SIZE_MAX);
-+	if (initlen == -1) {
-+		len = 1024;
-+	} else {
-+		len = (size_t)initlen;
-+	}
-+	buf = talloc_size(mem_ctx, len);
-+	if (buf == NULL) {
-+		return NULL;
-+	}
-+
-+	rc = getpwuid_r(getuid(), &pwd, buf, len, &pwdbuf);
- 	if (rc != 0 || pwdbuf == NULL ) {
- 		const char *szPath = getenv("HOME");
- 		if (szPath == NULL) {
--			return NULL;
-+			goto done;
- 		}
- 		len = strnlen(szPath, PATH_MAX);
- 		if (len >= PATH_MAX) {
- 			return NULL;
- 		}
--		return talloc_strdup(mem_ctx, szPath);
-+		out = talloc_strdup(mem_ctx, szPath);
-+		goto done;
- 	}
- 
--	return talloc_strdup(mem_ctx, pwd.pw_dir);
-+	out = talloc_strdup(mem_ctx, pwd.pw_dir);
-+done:
-+	TALLOC_FREE(buf);
-+	return out;
- }
- 
- char *path_expand_tilde(TALLOC_CTX *mem_ctx, const char *d)
--- 
-2.17.1
-
diff --git a/meta-networking/recipes-connectivity/samba/samba/0003-util-Reallocate-larger-buffer-if-getpwuid_r-returns-.patch b/meta-networking/recipes-connectivity/samba/samba/0003-util-Reallocate-larger-buffer-if-getpwuid_r-returns-.patch
deleted file mode 100644
index 53a3f67814a..00000000000
--- a/meta-networking/recipes-connectivity/samba/samba/0003-util-Reallocate-larger-buffer-if-getpwuid_r-returns-.patch
+++ /dev/null
@@ -1,50 +0,0 @@
-From 016e08ca07f86af9e0131a908a2df116bcb9a48e Mon Sep 17 00:00:00 2001
-From: Martin Schwenke <martin@meltin.net>
-Date: Fri, 5 Jun 2020 22:05:42 +1000
-Subject: [PATCH 3/3] util: Reallocate larger buffer if getpwuid_r() returns
- ERANGE
-
-Signed-off-by: Martin Schwenke <martin@meltin.net>
-Reviewed-by: Volker Lendecke <vl@samba.org>
-Reviewed-by: Bjoern Jacke <bjacke@samba.org>
-
-Autobuild-User(master): Martin Schwenke <martins@samba.org>
-Autobuild-Date(master): Tue Jun  9 21:07:24 UTC 2020 on sn-devel-184
-
-(cherry picked from commit ddac6b2eb4adaec8fc5e25ca07387d2b9417764c)
-
-Upstream-Status:Backport
-[https://gitlab.com/samba-team/samba/-/commit/016e08ca07f86af9e0131a908a2df116bcb9a48e]
-
-Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
----
- lib/util/util_paths.c | 13 +++++++++++++
- 1 file changed, 13 insertions(+)
-
-diff --git a/lib/util/util_paths.c b/lib/util/util_paths.c
-index 9bc6df37e5d..72cc0aab8de 100644
---- a/lib/util/util_paths.c
-+++ b/lib/util/util_paths.c
-@@ -86,6 +86,19 @@ static char *get_user_home_dir(TALLOC_CTX *mem_ctx)
- 	}
- 
- 	rc = getpwuid_r(getuid(), &pwd, buf, len, &pwdbuf);
-+	while (rc == ERANGE) {
-+		size_t newlen = 2 * len;
-+		if (newlen < len) {
-+			/* Overflow */
-+			goto done;
-+		}
-+		len = newlen;
-+		buf = talloc_realloc_size(mem_ctx, buf, len);
-+		if (buf == NULL) {
-+			goto done;
-+		}
-+		rc = getpwuid_r(getuid(), &pwd, buf, len, &pwdbuf);
-+	}
- 	if (rc != 0 || pwdbuf == NULL ) {
- 		const char *szPath = getenv("HOME");
- 		if (szPath == NULL) {
--- 
-2.17.1
-
diff --git a/meta-networking/recipes-connectivity/samba/samba_4.10.17.bb b/meta-networking/recipes-connectivity/samba/samba_4.10.18.bb
similarity index 97%
rename from meta-networking/recipes-connectivity/samba/samba_4.10.17.bb
rename to meta-networking/recipes-connectivity/samba/samba_4.10.18.bb
index 3ae5afbe956..b5085c913bc 100644
--- a/meta-networking/recipes-connectivity/samba/samba_4.10.17.bb
+++ b/meta-networking/recipes-connectivity/samba/samba_4.10.18.bb
@@ -28,9 +28,6 @@ SRC_URI = "${SAMBA_MIRROR}/stable/samba-${PV}.tar.gz \
            file://0002-util_sec.c-Move-__thread-variable-to-global-scope.patch \
            file://0001-Add-options-to-configure-the-use-of-libbsd.patch \
            file://0001-nsswitch-nsstest.c-Avoid-nss-function-conflicts-with.patch \
-           file://0001-util-Simplify-input-validation.patch \
-           file://0002-util-Fix-build-on-FreeBSD-by-avoiding-NSS_BUFLEN_PAS.patch \
-           file://0003-util-Reallocate-larger-buffer-if-getpwuid_r-returns-.patch \
            "
 SRC_URI_append_libc-musl = " \
            file://samba-pam.patch \
@@ -39,8 +36,8 @@ SRC_URI_append_libc-musl = " \
            file://0001-samba-fix-musl-lib-without-innetgr.patch \
           "
 
-SRC_URI[md5sum] = "f69cac9ba5035ee60257520a209a0a83"
-SRC_URI[sha256sum] = "03dc9758e7bfa2faf7cdeb45b4d40997e2ee16a41e71996aa666bc069e70ba3e"
+SRC_URI[md5sum] = "f006a3d1876113e4a049015969d20fe6"
+SRC_URI[sha256sum] = "7dcfc2aaaac565b959068788e6a43fc79ce2a03e7d523f5843f7a9fddffc7c2c"
 
 UPSTREAM_CHECK_REGEX = "samba\-(?P<pver>4\.10(\.\d+)+).tar.gz"
 
-- 
2.17.1