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Code Issues Releases Wiki Activity

schannel: on connection close there might not be a transfer

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Reported-by: Marcel Raad
Fixes #3412
Closes #3483
This commit is contained in:
Daniel Stenberg 2019-01-18 11:21:25 +01:00
parent b095a1ca63
commit 6ee6729709
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GPG Key ID: 5CC908FDB71E12C2
1 changed files with 10 additions and 3 deletions
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13
lib/vtls/schannel.c
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@ -7,7 +7,7 @@
* *
* Copyright (C) 2012 - 2016, Marc Hoersken, <info@marc-hoersken.de> * Copyright (C) 2012 - 2016, Marc Hoersken, <info@marc-hoersken.de>
* Copyright (C) 2012, Mark Salisbury, <mark.salisbury@hp.com> * Copyright (C) 2012, Mark Salisbury, <mark.salisbury@hp.com>
* Copyright (C) 2012 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al. * Copyright (C) 2012 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
* *
* This software is licensed as described in the file COPYING, which * This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms * you should have received as part of this distribution. The terms
@ -2013,9 +2013,16 @@ static int Curl_schannel_shutdown(struct connectdata *conn, int sockindex)
/* free SSPI Schannel API credential handle */ /* free SSPI Schannel API credential handle */
if(BACKEND->cred) { if(BACKEND->cred) {
Curl_ssl_sessionid_lock(conn); /*
* When this function is called from Curl_schannel_close() the connection
* might not have an associated transfer so the check for conn->data is
* necessary.
*/
if(conn->data)
Curl_ssl_sessionid_lock(conn);
Curl_schannel_session_free(BACKEND->cred); Curl_schannel_session_free(BACKEND->cred);
Curl_ssl_sessionid_unlock(conn); if(conn->data)
Curl_ssl_sessionid_unlock(conn);
BACKEND->cred = NULL; BACKEND->cred = NULL;
} }