Commit a703914e authored by Marc Hoersken's avatar Marc Hoersken
Browse files

curl_schannel.c: fix possible dereference of null pointer

parent 0115ec2f

lib/vtls/curl_schannel.c

+6 −0
Original line number Diff line number Diff line
@@ -310,6 +310,9 @@ schannel_connect_step2(struct connectdata *conn, int sockindex) 
  infof(data, "schannel: SSL/TLS connection with %s port %hu (step 2/3)\n",

        conn->host.name, conn->remote_port);



  if(!connssl->cred || !connssl->ctxt)

    return CURLE_SSL_CONNECT_ERROR;



  /* buffer to store previously received and encrypted data */

  if(connssl->encdata_buffer == NULL) {

    connssl->encdata_offset = 0;
@@ -508,6 +511,9 @@ schannel_connect_step3(struct connectdata *conn, int sockindex) 
  infof(data, "schannel: SSL/TLS connection with %s port %hu (step 3/3)\n",

        conn->host.name, conn->remote_port);



  if(!connssl->cred)

    return CURLE_SSL_CONNECT_ERROR;



  /* check if the required context attributes are met */

  if(connssl->ret_flags != connssl->req_flags) {

    if(!(connssl->ret_flags & ISC_RET_SEQUENCE_DETECT))