[Bug 31723] New: Heap corruption crash on exit from notepad under WINEDEBUG=warn+heap
wine-bugs at winehq.org
wine-bugs at winehq.org
Mon Sep 17 09:30:02 CDT 2012
http://bugs.winehq.org/show_bug.cgi?id=31723
Bug #: 31723
Summary: Heap corruption crash on exit from notepad under
WINEDEBUG=warn+heap
Product: Wine
Version: 1.5.12
Platform: x86
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: user32
AssignedTo: wine-bugs at winehq.org
ReportedBy: dank at kegel.com
Classification: Unclassified
Found while looking at bug 31353.
In wine-1.5.13, if I do
echo x > foo.txt
WINEDEBUG=warn+heap wine notepad foo.txt
and then exit notepad, it crashes with the following stack trace:
Unhandled exception: page fault on read access to 0xfeeefef6 in 32-bit code
(0x7db24356).
Backtrace:
=>0 ScriptStringFree+0x36(pssa=0x161bcc) [dlls/usp10/usp10.c:2320]
1 EditWndProc_common+0x1119(hwnd=<?>, msg=<?>, wParam=<?>, lParam=<?>,
unicode=<?>) [dlls/user32/edit.c:375]
2 EditWndProcW+0x3a(hwnd=0x10076, msg=0x82, wParam=0, lParam=0)
[dlls/user32/winproc.c:1081]
'winetricks usp10' does not work around it.
wine-1.4 does not have the problem.
git log on edit.c shows the most recent commit is
user32: Release uniscribe data on Edit control destruction (valgrind).
author Nikolay Sivov <nsivov at codeweavers.com>
Tue, 4 Sep 2012 19:06:17 +0000 (23:06 +0400)
commit 6b1946154831c4537b9fffc4994cb0273db55918
user32: Release uniscribe data on Edit control destruction (valgrind).
Reverting that gets rid of the crash.
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