Attachment 11357 Details for Bug 9862 – patch for 4.2

[patch] patch for 4.2

4.2.patch (text/plain), 5.97 KB, created by Andreas Schneider on 2015-08-24 08:02:48 UTC

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Creator: Andreas Schneider

Created: 2015-08-24 08:02:48 UTC

Size: 5.97 KB

patch

obsolete

>From 4438a33e0e3621e9b178620ba0e543069bf85012 Mon Sep 17 00:00:00 2001
>From: Andreas Schneider <asn@samba.org>
>Date: Wed, 19 Aug 2015 16:11:47 +0200
>Subject: [PATCH 1/3] s3-auth: Fix 'map to guest = Bad Uid' support
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=9862
>
>Signed-off-by: Andreas Schneider <asn@samba.org>
>Reviewed-by: Guenther Deschner <gd@samba.org>
>(cherry picked from commit 34965d4d98d172e848e2b96fad8a9e0b99288ba7)
>---
> source3/auth/auth_util.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
>diff --git a/source3/auth/auth_util.c b/source3/auth/auth_util.c
>index 1c2cf80..dcf173d 100644
>--- a/source3/auth/auth_util.c
>+++ b/source3/auth/auth_util.c
>@@ -1397,6 +1397,14 @@ NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
> 				     &username_was_mapped);
> 
> 	if (!NT_STATUS_IS_OK(nt_status)) {
>+		/* Handle 'map to guest = Bad Uid */
>+		if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER) &&
>+		    (lp_security() == SEC_ADS || lp_security() == SEC_DOMAIN) &&
>+		    lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID) {
>+			DEBUG(2, ("Try to map %s to guest account",
>+				  nt_username));
>+			return make_server_info_guest(mem_ctx, server_info);
>+		}
> 		return nt_status;
> 	}
> 
>-- 
>2.5.0
>
>
>From e0cfca754ed1c540f3b8a5adcea3bd85aac74930 Mon Sep 17 00:00:00 2001
>From: Andreas Schneider <asn@samba.org>
>Date: Wed, 19 Aug 2015 16:24:08 +0200
>Subject: [PATCH 2/3] s3-auth: Pass nt_username to check_account()
>
>We set nt_username above but do not use it in this function.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=9862
>
>Signed-off-by: Andreas Schneider <asn@samba.org>
>Reviewed-by: Guenther Deschner <gd@samba.org>
>(cherry picked from commit e8c76932e4ac192a00afa3b9731f5921c4b37da6)
>---
> source3/auth/auth_util.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
>diff --git a/source3/auth/auth_util.c b/source3/auth/auth_util.c
>index dcf173d..688072e 100644
>--- a/source3/auth/auth_util.c
>+++ b/source3/auth/auth_util.c
>@@ -1392,9 +1392,12 @@ NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
> 
> 	/* this call will try to create the user if necessary */
> 
>-	nt_status = check_account(mem_ctx, nt_domain, sent_nt_username,
>-				     &found_username, &pwd,
>-				     &username_was_mapped);
>+	nt_status = check_account(mem_ctx,
>+				  nt_domain,
>+				  nt_username,
>+				  &found_username,
>+				  &pwd,
>+				  &username_was_mapped);
> 
> 	if (!NT_STATUS_IS_OK(nt_status)) {
> 		/* Handle 'map to guest = Bad Uid */
>-- 
>2.5.0
>
>
>From d8421a1885a60a57fd35115a717a6f4c88133ded Mon Sep 17 00:00:00 2001
>From: Andreas Schneider <asn@samba.org>
>Date: Wed, 19 Aug 2015 16:19:30 +0200
>Subject: [PATCH 3/3] s3-auth: Fix a memory leak in make_server_info_info3()
>
>We call make_server_info(NULL) and it is possible that we do not free
>it, because server_info is not allocated on the memory context we pass
>to the function.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=9862
>
>Signed-off-by: Andreas Schneider <asn@samba.org>
>Reviewed-by: Guenther Deschner <gd@samba.org>
>(cherry picked from commit 6363c0232c2238e1a782e9c22ef762e3ff9b7563)
>---
> source3/auth/auth_util.c | 36 ++++++++++++++++++++++++------------
> 1 file changed, 24 insertions(+), 12 deletions(-)
>
>diff --git a/source3/auth/auth_util.c b/source3/auth/auth_util.c
>index 688072e..de5d541 100644
>--- a/source3/auth/auth_util.c
>+++ b/source3/auth/auth_util.c
>@@ -1349,6 +1349,7 @@ NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
> 	bool username_was_mapped;
> 	struct passwd *pwd;
> 	struct auth_serversupplied_info *result;
>+	TALLOC_CTX *tmp_ctx = talloc_stackframe();
> 
> 	/* 
> 	   Here is where we should check the list of
>@@ -1357,15 +1358,17 @@ NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
> 	*/
> 
> 	if (!sid_compose(&user_sid, info3->base.domain_sid, info3->base.rid)) {
>-		return NT_STATUS_INVALID_PARAMETER;
>+		nt_status = NT_STATUS_INVALID_PARAMETER;
>+		goto out;
> 	}
> 
> 	if (!sid_compose(&group_sid, info3->base.domain_sid,
> 			 info3->base.primary_gid)) {
>-		return NT_STATUS_INVALID_PARAMETER;
>+		nt_status = NT_STATUS_INVALID_PARAMETER;
>+		goto out;
> 	}
> 
>-	nt_username = talloc_strdup(mem_ctx, info3->base.account_name.string);
>+	nt_username = talloc_strdup(tmp_ctx, info3->base.account_name.string);
> 	if (!nt_username) {
> 		/* If the server didn't give us one, just use the one we sent
> 		 * them */
>@@ -1392,7 +1395,7 @@ NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
> 
> 	/* this call will try to create the user if necessary */
> 
>-	nt_status = check_account(mem_ctx,
>+	nt_status = check_account(tmp_ctx,
> 				  nt_domain,
> 				  nt_username,
> 				  &found_username,
>@@ -1406,15 +1409,20 @@ NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
> 		    lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID) {
> 			DEBUG(2, ("Try to map %s to guest account",
> 				  nt_username));
>-			return make_server_info_guest(mem_ctx, server_info);
>+				   nt_username);
>+			nt_status = make_server_info_guest(tmp_ctx, &result);
>+			if (NT_STATUS_IS_OK(nt_status)) {
>+				*server_info = talloc_move(mem_ctx, &result);
>+			}
> 		}
>-		return nt_status;
>+		goto out;
> 	}
> 
>-	result = make_server_info(NULL);
>+	result = make_server_info(tmp_ctx);
> 	if (result == NULL) {
> 		DEBUG(4, ("make_server_info failed!\n"));
>-		return NT_STATUS_NO_MEMORY;
>+		nt_status = NT_STATUS_NO_MEMORY;
>+		goto out;
> 	}
> 
> 	result->unix_name = talloc_strdup(result, found_username);
>@@ -1422,8 +1430,8 @@ NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
> 	/* copy in the info3 */
> 	result->info3 = copy_netr_SamInfo3(result, info3);
> 	if (result->info3 == NULL) {
>-		TALLOC_FREE(result);
>-		return NT_STATUS_NO_MEMORY;
>+		nt_status = NT_STATUS_NO_MEMORY;
>+		goto out;
> 	}
> 
> 	/* Fill in the unix info we found on the way */
>@@ -1453,9 +1461,13 @@ NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
> 
> 	result->guest = (info3->base.user_flags & NETLOGON_GUEST);
> 
>-	*server_info = result;
>+	*server_info = talloc_move(mem_ctx, &result);
> 
>-	return NT_STATUS_OK;
>+	nt_status = NT_STATUS_OK;
>+out:
>+	talloc_free(tmp_ctx);
>+
>+	return nt_status;
> }
> 
> /*****************************************************************************
>-- 
>2.5.0
>

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Attachments on bug 9862: 11356 | 11357 | 11358 | 11360 | 11361