upstream: fix memory leak in mux proxy mode when requesting forwarding.

found by RASU JSC, reported by Maks Mishin in GHPR#467

OpenBSD-Commit-ID: 97d96a166b1ad4b8d229864a553e3e56d3116860
This commit is contained in:
djm@openbsd.org 2024-03-06 02:59:59 +00:00 committed by Damien Miller
parent 242742827f
commit c47e1c9c79
No known key found for this signature in database
1 changed files with 3 additions and 4 deletions

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@ -1,4 +1,4 @@
/* $OpenBSD: channels.c,v 1.436 2024/01/09 22:19:00 djm Exp $ */
/* $OpenBSD: channels.c,v 1.437 2024/03/06 02:59:59 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -3245,9 +3245,8 @@ channel_proxy_downstream(struct ssh *ssh, Channel *downstream)
goto out;
}
/* Record that connection to this host/port is permitted. */
permission_set_add(ssh, FORWARD_USER, FORWARD_LOCAL, "<mux>", -1,
listen_host, NULL, (int)listen_port, downstream);
listen_host = NULL;
permission_set_add(ssh, FORWARD_USER, FORWARD_LOCAL, "<mux>",
-1, listen_host, NULL, (int)listen_port, downstream);
break;
case SSH2_MSG_CHANNEL_CLOSE:
if (have < 4)