From: Howard Chu <hyc@openldap.org>
Date: Fri, 1 May 2009 04:26:44 +0000 (+0000)
Subject: Don't underflow malloc'd memory in hdb_fix_dn()
X-Git-Tag: ACLCHECK_0~582
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=c7142fdec56a6e9af0ce0734ef6909dc844927ba;p=openldap

Don't underflow malloc'd memory in hdb_fix_dn()
---

diff --git a/servers/slapd/back-bdb/dn2id.c b/servers/slapd/back-bdb/dn2id.c
index 7a022db165..f4c528fa48 100644
--- a/servers/slapd/back-bdb/dn2id.c
+++ b/servers/slapd/back-bdb/dn2id.c
@@ -529,8 +529,8 @@ int hdb_fix_dn(
 		}
 	}
 	BEI(e)->bei_modrdns = max;
-	ptr[-1] = '\0';
-	nptr[-1] = '\0';
+	if ( ptr > e->e_name.bv_val ) ptr[-1] = '\0';
+	if ( nptr > e->e_nname.bv_val ) nptr[-1] = '\0';
 
 	return 0;
 }