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Fix null dereference in ldisc_configure.

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The IDM_RECONF handler unconditionally calls ldisc_configure to
reconfigure the line discipline for the new echo/edit settings, but in
fact ldisc can be NULL if no session is currently active. (Indeed, the
very next line acknowledges this, by testing it for NULL before
calling ldisc_send!) Thanks to Alexander Wong for the report.

[originally from svn r10214]
This commit is contained in:
Simon Tatham 2014-08-27 22:25:37 +00:00
parent 4b2a2060bb
commit 92fba02d57
1 changed files with 3 additions and 2 deletions
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5
windows/window.c
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@ -2234,9 +2234,10 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
* Flush the line discipline's edit buffer in the * Flush the line discipline's edit buffer in the
* case where local editing has just been disabled. * case where local editing has just been disabled.
*/ */
ldisc_configure(ldisc, conf); if (ldisc) {
if (ldisc) ldisc_configure(ldisc, conf);
ldisc_send(ldisc, NULL, 0, 0); ldisc_send(ldisc, NULL, 0, 0);
}
if (pal) if (pal)
DeleteObject(pal); DeleteObject(pal);
logpal = NULL; logpal = NULL;