From 5d6feab0e2aba6f71679df24f46c0251e63f2f7b Mon Sep 17 00:00:00 2001
From: Juan Lang <juan.lang@gmail.com>
Date: Thu, 18 Oct 2007 20:44:18 -0700
Subject: [PATCH] crypt32: Don't keep a pointer to the lower quality chains
 when choosing a higher quality one, otherwise they'll get double-freed.

---
 dlls/crypt32/chain.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/crypt32/chain.c b/dlls/crypt32/chain.c
index ff555bbc6c4..9832f0e7f02 100644
--- a/dlls/crypt32/chain.c
+++ b/dlls/crypt32/chain.c
@@ -1272,6 +1272,8 @@ static PCertificateChain CRYPT_ChooseHighestQualityChain(
              chain->context.rgpLowerQualityChainContext;
             alternate->context.rgpLowerQualityChainContext[i] =
              (PCCERT_CHAIN_CONTEXT)chain;
+            chain->context.cLowerQualityChainContext = 0;
+            chain->context.rgpLowerQualityChainContext = NULL;
             chain = alternate;
         }
     }