Juan Lang : crypt32: Don' t crash when querying the length of the hash of a CRL or a CTL.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 00c50a6732fa009596aaf4f96e94cb933a196b85
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=00c50a6732fa009596aaf4f96e94cb933a196b85

Author: Juan Lang <juan.lang at gmail.com>
Date:   Mon Dec 22 19:32:41 2008 -0800

crypt32: Don't crash when querying the length of the hash of a CRL or a CTL.

---

 dlls/crypt32/crl.c |    2 +-
 dlls/crypt32/ctl.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/crypt32/crl.c b/dlls/crypt32/crl.c
index 9ae0d5d..a1138b5 100644
--- a/dlls/crypt32/crl.c
+++ b/dlls/crypt32/crl.c
@@ -275,7 +275,7 @@ static BOOL CRLContext_GetHashProp(PCCRL_CONTEXT context, DWORD dwPropId,
 {
     BOOL ret = CryptHashCertificate(0, algID, 0, toHash, toHashLen, pvData,
      pcbData);
-    if (ret)
+    if (ret && pvData)
     {
         CRYPT_DATA_BLOB blob = { *pcbData, pvData };
 
diff --git a/dlls/crypt32/ctl.c b/dlls/crypt32/ctl.c
index 65691bb..42abcd7 100644
--- a/dlls/crypt32/ctl.c
+++ b/dlls/crypt32/ctl.c
@@ -505,7 +505,7 @@ static BOOL CTLContext_GetHashProp(PCCTL_CONTEXT context, DWORD dwPropId,
 {
     BOOL ret = CryptHashCertificate(0, algID, 0, toHash, toHashLen, pvData,
      pcbData);
-    if (ret)
+    if (ret && pvData)
     {
         CRYPT_DATA_BLOB blob = { *pcbData, pvData };