crypt32: Check number of bytes returned by ReadFile and avoid a memory leak on error path.

[Dmitry Timoshkov]

---
 dlls/crypt32/filestore.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/crypt32/filestore.c b/dlls/crypt32/filestore.c
index 44b9bbb..81c8c5e 100644
--- a/dlls/crypt32/filestore.c
+++ b/dlls/crypt32/filestore.c
@@ -119,7 +119,8 @@ static BOOL CRYPT_ReadBlobFromFile(HANDLE file, PCERT_BLOB blob)
         {
             DWORD read;
 
-            ret = ReadFile(file, blob->pbData, blob->cbData, &read, NULL);
+            ret = ReadFile(file, blob->pbData, blob->cbData, &read, NULL) && read == blob->cbData;
+            if (!ret) CryptMemFree(blob->pbData);
         }
     }
     return ret;
-- 
1.8.4.1