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Sync OpenBSD patchset 388:

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Set the current window pointer to NULL when killing a winlink that is to be
replaced with link-window -k. This prevents it being pushed onto the last
window stack and causing a use-after-free.

Only took me an hour to find this :-/...
This commit is contained in:
Tiago Cunha 2009-10-12 00:37:41 +00:00
parent 3584fa15ec
commit 39afe3fc2a
1 changed files with 4 additions and 2 deletions
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6
server-fn.c
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@ -1,4 +1,4 @@
/* $Id: server-fn.c,v 1.93 2009-10-11 23:38:16 tcunha Exp $ */
/* $Id: server-fn.c,v 1.94 2009-10-12 00:37:41 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -284,8 +284,10 @@ server_link_window(struct session *src, struct winlink *srcwl,
winlink_remove(&dst->windows, dstwl);
/* Force select/redraw if current. */
if (dstwl == dst->curw)
if (dstwl == dst->curw) {
selectflag = 1;
dst->curw = NULL;
}
}
}