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Eskil Abrahamsen Blomfeldt 65a1d41a09 Fix potential crash when showing line/paragraph separators 
When showing line and paragraph separators at an offset from the start
of the string, the end of string pointer would be incorrectly set, and
we would read past the end of the string. If any part of this memory
happened to match the line or paragraph separator, then we would
overwrite it and have a crash.

I couldn't find any reliable way to test this, since the crash depends on
the contents of the memory after the string allocated by the algorithm.
But with an overflow of 100 000 characters, I found that it crashed every
time I ran the test.

[ChangeLog][QtGui][Text] Fixed potential crash when using
QTextOption::ShowLineAndParagraphSeparators.

Task-number: QTBUG-69661
Change-Id: I17d1996b883560bacdc7ce114c8aeb2b0108faea
Reviewed-by: JiDe Zhang <zccrs@live.com>
Reviewed-by: Michal Lazo <xlazom00@gmail.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
2018-08-09 12:46:22 +00:00
bin syncqt: make it possible to declare particular headers being private 2018-06-25 09:48:37 +00:00
config.tests Merge remote-tracking branch 'origin/5.9' into 5.11 2018-02-14 12:51:24 +01:00
dist Merge remote-tracking branch 'origin/5.11.1' into 5.11 2018-06-19 13:12:48 +02:00
doc Doc: Update really old screenshot in Sliders Example 2018-08-03 12:32:32 +00:00
examples Doc: Synchronize documentation with code snippet 2018-08-01 14:48:38 +00:00
lib Purge all fonts 2015-08-18 19:59:14 +00:00
mkspecs make it possible to override the basename of module config files 2018-08-03 14:15:41 +00:00
qmake qmake vcxproj generator: Fix extra compilers for single configs 2018-08-09 06:21:01 +00:00
src Fix potential crash when showing line/paragraph separators 2018-08-09 12:46:22 +00:00
tests Fix potential crash when showing line/paragraph separators 2018-08-09 12:46:22 +00:00
util QtEdidSupport: Fix private headers 2018-02-02 07:21:49 +00:00
.gitattributes Update the git-archive export options 2012-09-07 15:39:31 +02:00
.gitignore gitignore: don't ignore Info.plist templates for libraries 2017-11-23 07:07:48 +00:00
.qmake.conf Bump version 2018-08-02 15:14:17 +00:00
.tag Update the git-archive export options 2012-09-07 15:39:31 +02:00
config_help.txt configure: mention -libudev in help output 2018-04-20 10:38:03 +00:00
configure configure: Detect Cocoa instead of Carbon 2018-04-05 21:04:22 +00:00
configure.bat configure: Prefer cl.exe over clang-cl.exe 2018-01-04 21:22:42 +00:00
configure.json configure: pull ahead gcc-sysroot processing 2018-07-13 11:09:07 +00:00
configure.pri qmake: skip license check while building qt 2018-07-20 18:07:48 +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
INSTALL Doc: Update links in INSTALL file 2015-02-16 09:06:41 +00:00
LGPL_EXCEPTION.txt Update copyright headers 2015-02-11 06:49:51 +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 Testlib: Rename qtest_global.h to qttestglobal.h 2018-03-21 10:31:01 +00:00