commit 288fa94ac7cfdf7457b5098c33fc840bed3d5410
Author:     Michael Adam <obnox@samba.org>
AuthorDate: Thu Dec 18 18:01:55 2008 +0100
Commit:     Karolin Seeger <kseeger@samba.org>
CommitDate: Fri Dec 19 08:30:23 2008 +0100

    smbd: prevent access to root filesystem when connecting with empty service name
    
    This only applies to a setup with "registry shares = yes"
    
    Michael
---
 source/smbd/service.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/source/smbd/service.c b/source/smbd/service.c
index 491a67a..cb51f35 100644
--- a/source/smbd/service.c
+++ b/source/smbd/service.c
@@ -235,6 +235,10 @@ static int load_registry_service(const char *servicename)
 		return -1;
 	}
 
+	if ((servicename == NULL) || (*servicename == '\0')) {
+		return -1;
+	}
+
 	if (strequal(servicename, GLOBAL_NAME)) {
 		return -2;
 	}