Re: [389-devel] Please review: coverity 12563 Read from pointer after free

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An additional fix is needed for this issue.  Your patch fixed the dna_pre_op() function, but the same issue exists in the dna_be_txn_pre_op() function.  The attached patch takes care of this.

On 03/06/2012 09:30 AM, Rich Megginson wrote:




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>From 6f8680a94aa721633a18148b44bd28baa72cd4ae Mon Sep 17 00:00:00 2001
From: Nathan Kinder <nkinder@xxxxxxxxxx>
Date: Wed, 7 Mar 2012 06:49:13 -0800
Subject: [PATCH] coverity 12563 Read from pointer after free (fix 2)

The previous commit for coverity issue 12563 fixed the dna_pre_op()
function to avoid reading the target of a freed pointer.  This same
fix needs to be made to dna_be_txn_pre_op().
---
 ldap/servers/plugins/dna/dna.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/ldap/servers/plugins/dna/dna.c b/ldap/servers/plugins/dna/dna.c
index 84f2a7a..80f722b 100644
--- a/ldap/servers/plugins/dna/dna.c
+++ b/ldap/servers/plugins/dna/dna.c
@@ -3481,6 +3481,7 @@ static int dna_be_txn_pre_op(Slapi_PBlock *pb, int modtype)
                 slapi_ch_free_string(&value);
                 slapi_ch_free_string(&new_value);
                 slapi_ch_array_free(types_to_generate);
+                types_to_generate = NULL;
             } else if (types_to_generate) {
                 slapi_ch_free((void **)&types_to_generate);
             }
-- 
1.7.7.6

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