[SCM] Samba Shared Repository - branch master updated

Jeremy Allison jra at samba.org
Sat Aug 11 02:44:02 UTC 2018


The branch, master has been updated
       via  3e6ce5c s3:registry: Fix possible memory leak in _reg_perfcount_multi_sz_from_tdb()
       via  dbdbd48 s3:libads: Fix memory leaks in ads_krb5_chg_password()
       via  3d32c02 s3:client: Avoid a possible fd leak in do_get()
       via  d4fb124 s4:lib: Fix a possible fd leak in gp_get_file()
       via  b7b4fc5 s3:utils: Do not leak memory in new_user()
       via  f20150f s3:utils: Do not overflow the destination buffer in net_idmap_restore()
       via  e4f4f5e s3:passdb: Don't leak memory on error in fetch_ldap_pw()
       via  e6689c3 wbinfo: Free memory when we leave wbinfo_dsgetdcname()
      from  bca4008 s3: tests: smbclient. Regression test to ensure we get NT_STATUS_DIRECTORY_NOT_EMPTY on rmdir.

https://git.samba.org/?p=samba.git;a=shortlog;h=master


- Log -----------------------------------------------------------------
commit 3e6ce5c6e679fdb39ed8142bf5e1ed4105164826
Author: Andreas Schneider <asn at samba.org>
Date:   Thu Aug 9 16:15:10 2018 +0200

    s3:registry: Fix possible memory leak in _reg_perfcount_multi_sz_from_tdb()
    
    Found by covscan.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
    
    Pair-Programmed-With: Justin Stephenson <jstephen at redhat.com>
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Signed-off-by: Justin Stephenson <jstephen at redhat.com>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    
    Autobuild-User(master): Jeremy Allison <jra at samba.org>
    Autobuild-Date(master): Sat Aug 11 04:43:15 CEST 2018 on sn-devel-144

commit dbdbd4875ecac3e7334750f46f1f494b7afe6628
Author: Andreas Schneider <asn at samba.org>
Date:   Thu Aug 9 16:02:16 2018 +0200

    s3:libads: Fix memory leaks in ads_krb5_chg_password()
    
    Found by covscan.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
    
    Pair-Programmed-With: Justin Stephenson <jstephen at redhat.com>
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Signed-off-by: Justin Stephenson <jstephen at redhat.com>
    Reviewed-by: Jeremy Allison <jra at samba.org>

commit 3d32c0263b072e19335eba1451840284409ecb61
Author: Andreas Schneider <asn at samba.org>
Date:   Thu Aug 9 15:58:32 2018 +0200

    s3:client: Avoid a possible fd leak in do_get()
    
    Found by covscan.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
    
    Pair-Programmed-With: Justin Stephenson <jstephen at redhat.com>
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Signed-off-by: Justin Stephenson <jstephen at redhat.com>
    Reviewed-by: Jeremy Allison <jra at samba.org>

commit d4fb124adfc10de8b7eb1f72b74d7ca83f8415dd
Author: Andreas Schneider <asn at samba.org>
Date:   Thu Aug 9 16:42:43 2018 +0200

    s4:lib: Fix a possible fd leak in gp_get_file()
    
    Found by covscan.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
    
    Pair-Programmed-With: Justin Stephenson <jstephen at redhat.com>
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Signed-off-by: Justin Stephenson <jstephen at redhat.com>
    Reviewed-by: Jeremy Allison <jra at samba.org>

commit b7b4fc51d0eadbbc94576dda75ae80098a205a24
Author: Andreas Schneider <asn at samba.org>
Date:   Thu Aug 9 16:30:03 2018 +0200

    s3:utils: Do not leak memory in new_user()
    
    Found by covscan.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
    
    Pair-Programmed-With: Justin Stephenson <jstephen at redhat.com>
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Signed-off-by: Justin Stephenson <jstephen at redhat.com>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>

commit f20150fb1ea5292f099862af6268d06844954d5e
Author: Andreas Schneider <asn at samba.org>
Date:   Thu Aug 9 16:19:48 2018 +0200

    s3:utils: Do not overflow the destination buffer in net_idmap_restore()
    
    Found by covsan.
    
    error[invalidScanfFormatWidth]: Width 128 given in format string (no. 2)
    is larger than destination buffer 'sid_string[128]', use %127s to
    prevent overflowing it.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
    
    Pair-Programmed-With: Justin Stephenson <jstephen at redhat.com>
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Signed-off-by: Justin Stephenson <jstephen at redhat.com>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>

commit e4f4f5eb7303a0cce4f426dd9cfd1d6a488495b0
Author: Andreas Schneider <asn at samba.org>
Date:   Thu Aug 9 16:05:41 2018 +0200

    s3:passdb: Don't leak memory on error in fetch_ldap_pw()
    
    Found by covscan.
    
    A candidate to use tallac ...
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
    
    Pair-Programmed-With: Justin Stephenson <jstephen at redhat.com>
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Signed-off-by: Justin Stephenson <jstephen at redhat.com>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>

commit e6689c3e14c2dfaebaf1109f21e53184fea45d41
Author: Andreas Schneider <asn at samba.org>
Date:   Thu Aug 9 15:53:45 2018 +0200

    wbinfo: Free memory when we leave wbinfo_dsgetdcname()
    
    Found by covscan.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
    
    Pair-Programmed-With: Justin Stephenson <jstephen at redhat.com>
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Signed-off-by: Justin Stephenson <jstephen at redhat.com>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>

-----------------------------------------------------------------------

Summary of changes:
 nsswitch/wbinfo.c                |  3 +++
 source3/client/client.c          |  7 +++++++
 source3/libads/krb5_setpw.c      |  2 ++
 source3/passdb/secrets.c         |  4 ++++
 source3/registry/reg_perfcount.c | 15 +++++++++++----
 source3/utils/net_idmap.c        |  4 ++--
 source3/utils/pdbedit.c          | 10 +++++++---
 source4/lib/policy/gp_filesys.c  | 24 ++++++++++++++++--------
 8 files changed, 52 insertions(+), 17 deletions(-)


Changeset truncated at 500 lines:

diff --git a/nsswitch/wbinfo.c b/nsswitch/wbinfo.c
index 1b58c73..c456f6e 100644
--- a/nsswitch/wbinfo.c
+++ b/nsswitch/wbinfo.c
@@ -747,6 +747,9 @@ static bool wbinfo_dsgetdcname(const char *domain_name, uint32_t flags)
 	d_printf("%s\n", dc_info->dc_site_name);
 	d_printf("%s\n", dc_info->client_site_name);
 
+	wbcFreeMemory(str);
+	wbcFreeMemory(dc_info);
+
 	return true;
 }
 
diff --git a/source3/client/client.c b/source3/client/client.c
index f112b8c..25ba01d 100644
--- a/source3/client/client.c
+++ b/source3/client/client.c
@@ -1160,6 +1160,7 @@ static int do_get(const char *rname, const char *lname_in, bool reget)
 				start = lseek(handle, 0, SEEK_END);
 				if (start == -1) {
 					d_printf("Error seeking local file\n");
+					close(handle);
 					return 1;
 				}
 			}
@@ -1181,6 +1182,9 @@ static int do_get(const char *rname, const char *lname_in, bool reget)
 				      NULL);
 		if(!NT_STATUS_IS_OK(status)) {
 			d_printf("getattrib: %s\n", nt_errstr(status));
+			if (newhandle) {
+				close(handle);
+			}
 			return 1;
 		}
 	}
@@ -1193,6 +1197,9 @@ static int do_get(const char *rname, const char *lname_in, bool reget)
 	if (!NT_STATUS_IS_OK(status)) {
 		d_fprintf(stderr, "parallel_read returned %s\n",
 			  nt_errstr(status));
+		if (newhandle) {
+			close(handle);
+		}
 		cli_close(targetcli, fnum);
 		return 1;
 	}
diff --git a/source3/libads/krb5_setpw.c b/source3/libads/krb5_setpw.c
index bc96ac6..0418fec 100644
--- a/source3/libads/krb5_setpw.c
+++ b/source3/libads/krb5_setpw.c
@@ -224,6 +224,7 @@ static ADS_STATUS ads_krb5_chg_password(const char *kdc_host,
 	krb5_get_init_creds_opt_free(context, opts);
 	krb5_free_context(context);
 	free(realm);
+	smb_krb5_free_addresses(context, addr);
 	DEBUG(1,("ads_krb5_chg_password: asprintf fail\n"));
 	return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
     }
@@ -234,6 +235,7 @@ static ADS_STATUS ads_krb5_chg_password(const char *kdc_host,
 					   kerb_prompter, NULL, 
 					   0, chpw_princ, opts);
 	krb5_get_init_creds_opt_free(context, opts);
+	smb_krb5_free_addresses(context, addr);
     SAFE_FREE(chpw_princ);
     SAFE_FREE(password);
 
diff --git a/source3/passdb/secrets.c b/source3/passdb/secrets.c
index 7533d6b..ce215b1 100644
--- a/source3/passdb/secrets.c
+++ b/source3/passdb/secrets.c
@@ -351,6 +351,8 @@ bool fetch_ldap_pw(char **dn, char** pw)
 
 		if (!old_style_key) {
 			DEBUG(0, ("fetch_ldap_pw: strdup failed!\n"));
+			SAFE_FREE(*pw);
+			SAFE_FREE(*dn);
 			return False;
 		}
 
@@ -361,6 +363,7 @@ bool fetch_ldap_pw(char **dn, char** pw)
 		if ((data == NULL) || (size < sizeof(old_style_pw))) {
 			DEBUG(0,("fetch_ldap_pw: neither ldap secret retrieved!\n"));
 			SAFE_FREE(old_style_key);
+			SAFE_FREE(*pw);
 			SAFE_FREE(*dn);
 			SAFE_FREE(data);
 			return False;
@@ -375,6 +378,7 @@ bool fetch_ldap_pw(char **dn, char** pw)
 		if (!secrets_store_ldap_pw(*dn, old_style_pw)) {
 			DEBUG(0,("fetch_ldap_pw: ldap secret could not be upgraded!\n"));
 			SAFE_FREE(old_style_key);
+			SAFE_FREE(*pw);
 			SAFE_FREE(*dn);
 			return False;
 		}
diff --git a/source3/registry/reg_perfcount.c b/source3/registry/reg_perfcount.c
index db4451e..e31f899 100644
--- a/source3/registry/reg_perfcount.c
+++ b/source3/registry/reg_perfcount.c
@@ -168,6 +168,7 @@ static uint32_t _reg_perfcount_multi_sz_from_tdb(TDB_CONTEXT *tdb,
 	TDB_DATA kbuf, dbuf;
 	char temp[PERFCOUNT_MAX_LEN] = {0};
 	char *buf1 = *retbuf;
+	char *p = NULL;
 	uint32_t working_size = 0;
 	DATA_BLOB name_index, name;
 	bool ok;
@@ -185,13 +186,16 @@ static uint32_t _reg_perfcount_multi_sz_from_tdb(TDB_CONTEXT *tdb,
 	}
 	/* First encode the name_index */
 	working_size = (kbuf.dsize + 1)*sizeof(uint16_t);
-	buf1 = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
-	if(!buf1) {
+	p = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
+	if (p == NULL) {
+		SAFE_FREE(buf1);
 		buffer_size = 0;
 		return buffer_size;
 	}
+	buf1 = p;
 	ok = push_reg_sz(talloc_tos(), &name_index, (const char *)kbuf.dptr);
 	if (!ok) {
+		SAFE_FREE(buf1);
 		buffer_size = 0;
 		return buffer_size;
 	}
@@ -199,16 +203,19 @@ static uint32_t _reg_perfcount_multi_sz_from_tdb(TDB_CONTEXT *tdb,
 	buffer_size += working_size;
 	/* Now encode the actual name */
 	working_size = (dbuf.dsize + 1)*sizeof(uint16_t);
-	buf1 = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
-	if(!buf1) {
+	p = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
+	if (p == NULL) {
+		SAFE_FREE(buf1);
 		buffer_size = 0;
 		return buffer_size;
 	}
+	buf1 = p;
 	memset(temp, 0, sizeof(temp));
 	memcpy(temp, dbuf.dptr, dbuf.dsize);
 	SAFE_FREE(dbuf.dptr);
 	ok = push_reg_sz(talloc_tos(), &name, temp);
 	if (!ok) {
+		SAFE_FREE(buf1);
 		buffer_size = 0;
 		return buffer_size;
 	}
diff --git a/source3/utils/net_idmap.c b/source3/utils/net_idmap.c
index fee8121..4f36566 100644
--- a/source3/utils/net_idmap.c
+++ b/source3/utils/net_idmap.c
@@ -417,14 +417,14 @@ static int net_idmap_restore(struct net_context *c, int argc, const char **argv)
 		if ( (len > 0) && (line[len-1] == '\n') )
 			line[len-1] = '\0';
 
-		if (sscanf(line, "GID %lu %128s", &idval, sid_string) == 2)
+		if (sscanf(line, "GID %lu %127s", &idval, sid_string) == 2)
 		{
 			ret = net_idmap_store_id_mapping(db, ID_TYPE_GID,
 							 idval, sid_string);
 			if (ret != 0) {
 				break;
 			}
-		} else if (sscanf(line, "UID %lu %128s", &idval, sid_string) == 2)
+		} else if (sscanf(line, "UID %lu %127s", &idval, sid_string) == 2)
 		{
 			ret = net_idmap_store_id_mapping(db, ID_TYPE_UID,
 							 idval, sid_string);
diff --git a/source3/utils/pdbedit.c b/source3/utils/pdbedit.c
index a353bae..5c947e2 100644
--- a/source3/utils/pdbedit.c
+++ b/source3/utils/pdbedit.c
@@ -750,7 +750,7 @@ static int new_user(const char *username, const char *fullname,
 	NTSTATUS status;
 	struct dom_sid u_sid;
 	int flags;
-	int ret;
+	int ret = -1;
 
 	tosctx = talloc_tos();
 	if (!tosctx) {
@@ -766,10 +766,14 @@ static int new_user(const char *username, const char *fullname,
 	}
 
 	pwd1 = get_pass( "new password:", stdin_get);
+	if (pwd1 == NULL) {
+		fprintf(stderr, "Failed to read passwords.\n");
+		goto done;
+	}
 	pwd2 = get_pass( "retype new password:", stdin_get);
-	if (!pwd1 || !pwd2) {
+	if (pwd2 == NULL) {
 		fprintf(stderr, "Failed to read passwords.\n");
-		return -1;
+		goto done;
 	}
 	ret = strcmp(pwd1, pwd2);
 	if (ret != 0) {
diff --git a/source4/lib/policy/gp_filesys.c b/source4/lib/policy/gp_filesys.c
index d48fc9f..267762d 100644
--- a/source4/lib/policy/gp_filesys.c
+++ b/source4/lib/policy/gp_filesys.c
@@ -215,6 +215,7 @@ static NTSTATUS gp_get_file (struct smbcli_tree *tree, const char *remote_src,
 	fh_local = open(local_dst, O_WRONLY | O_CREAT | O_TRUNC, 0644);
 	if (fh_local == -1) {
 		DEBUG(0, ("Failed to open local file: %s\n", local_dst));
+		smbcli_close(tree, fh_remote);
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
@@ -224,11 +225,17 @@ static NTSTATUS gp_get_file (struct smbcli_tree *tree, const char *remote_src,
 			NT_STATUS_IS_ERR(smbcli_getattrE(tree, fh_remote,
 				&attr, &file_size, NULL, NULL, NULL))) {
 		DEBUG(0, ("Failed to get remote file size: %s\n", smbcli_errstr(tree)));
+		smbcli_close(tree, fh_remote);
+		close(fh_local);
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
 	buf = talloc_zero_array(tree, uint8_t, buf_size);
-	NT_STATUS_HAVE_NO_MEMORY(buf);
+	if (buf == NULL) {
+		smbcli_close(tree, fh_remote);
+		close(fh_local);
+		return NT_STATUS_NO_MEMORY;
+	}
 
 	/* Copy the contents of the file */
 	while (1) {
@@ -240,27 +247,28 @@ static NTSTATUS gp_get_file (struct smbcli_tree *tree, const char *remote_src,
 
 		if (write(fh_local, buf, n) != n) {
 			DEBUG(0, ("Short write while copying file.\n"));
+			smbcli_close(tree, fh_remote);
+			close(fh_local);
 			talloc_free(buf);
 			return NT_STATUS_UNSUCCESSFUL;
 		}
 		nread += n;
 	}
 
+	/* Close the files */
+	smbcli_close(tree, fh_remote);
+	close(fh_local);
+
+	talloc_free(buf);
+
 	/* Bytes read should match the file size, or the copy was incomplete */
 	if (nread != file_size) {
 		DEBUG(0, ("Remote/local file size mismatch after copying file: "
 		          "%s (remote %zu, local %zu).\n",
 		          remote_src, file_size, nread));
-		close(fh_local);
-		talloc_free(buf);
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	/* Close the files */
-	smbcli_close(tree, fh_remote);
-	close(fh_local);
-
-	talloc_free(buf);
 	return NT_STATUS_OK;
 }
 


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