curl_schannel.c: Reference count the credential/session handle

Reference counting the credential handle should avoid that such a
handle is freed while it is still required for connection shutdown

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/urldata.h b/lib/urldata.h
index fddfc0d05..5f893c92e 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -234,6 +234,7 @@ enum protection_level {
 struct curl_schannel_cred {
   CredHandle cred_handle;
   TimeStamp time_stamp;
+  int refcount;
 };
 
 struct curl_schannel_ctxt {