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Ivan Čukić 5dde7bd922 Erase password data on QLineEdit destruction 
The contents of a deleted QString can still remain in memory
and can be accessible by tools that read the raw process memory.
This means that a QLineEdit that serves as a password input field
can leak the password after it is destroyed.

With this patch, the contents of the m_text string member variable
will be zeroed-out before the m_text is destructed. This is done
only in the cases when the QLineEdit serves as a password field.

[ChangeLog][QtWidgets][QWidgetLineControl/security] Zero-out the string
that contains a password entered into the QLineEdit

Change-Id: I8f88f952244bf8a0399c14acf0869439ca0a60ca
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2018-12-03 10:05:33 +00:00
bin syncqt: Do not clean header directory before "-minimal" run 2018-11-22 14:16:53 +00:00
config.tests Merge remote-tracking branch 'origin/5.11' into 5.12 2018-10-21 01:00:09 +02:00
dist macOS: Remove incorrect statement about layer-backing in changelog 2018-11-15 06:49:57 +00:00
doc doc: Update online navigation header to match http://doc.qt.io/ 2018-10-17 16:16:28 +00:00
examples Codecs example: Add a dialog for showing common C++ encodings 2018-11-30 10:00:04 +00:00
lib Purge all fonts 2015-08-18 19:59:14 +00:00
mkspecs WebAssembly: Fix compilation of application on Windows host 2018-12-03 08:48:28 +00:00
qmake qmake: Escape '=' in dependency paths for unix make 2018-11-30 14:47:42 +00:00
src Erase password data on QLineEdit destruction 2018-12-03 10:05:33 +00:00
tests Fix compilation 2018-12-03 07:53:00 +00:00
util Clean up and update Unicode character data 3rd-party infrastructure 2018-11-11 22:09:27 +00:00
.gitattributes Update the git-archive export options 2012-09-07 15:39:31 +02:00
.gitignore Remove support for qml1 plugins and modules 2018-11-15 19:52:13 +00:00
.qmake.conf Bump version 2018-11-08 11:26:39 +01:00
.tag Update the git-archive export options 2012-09-07 15:39:31 +02:00
config_help.txt src/3rdparty: remove xkbcommon 2018-11-30 09:47:03 +00:00
configure configure: Treat win32-clang-g++ the same as win32-g++ 2018-10-10 04:10:40 +00:00
configure.bat configure: Prefer cl.exe over clang-cl.exe 2018-01-04 21:22:42 +00:00
configure.json wasm: skip examples by default 2018-11-11 09:10:17 +00:00
configure.pri configure: fix license determination failure message 2018-11-21 23:07:48 +00:00
header.BSD Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.COMM Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.FDL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.GPL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.GPL-EXCEPT Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL3 Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL3-COMM Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL-NOGPL2 Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL-ONLY Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.MIT qsimd: add support for new x86 CPU features 2018-05-05 06:20:07 +00:00
INSTALL Doc: Update links in INSTALL file 2015-02-16 09:06:41 +00:00
LICENSE.FDL Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
LICENSE.GPL2 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3-EXCEPT Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPLv3 Remove LICENSE.GPLv3, LICENSE.LGPLv21, LGPL_EXCEPTION.txt 2018-04-16 11:02:14 +00:00
LICENSE.QT-LICENSE-AGREEMENT-4.0 Replace commercial preview license with Qt License Agreement 4.0 2018-06-21 11:39:15 +00:00
qtbase.pro nuke configure -host-option 2016-12-13 18:55:59 +00:00
sync.profile Fix build failed with ANGLE 2018-10-16 05:19:43 +00:00