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Marc Mutz c31fecd27f QByteArray: fix UB (precondition violation) in replace() 
If after.isNull(), then we called memcpy with a nullptr, which is UB,
even if the size is zero, too.

memmove() has the same precondition.

Fix by guarding the memcpy() call with an explicit length check.

The Qt 5.15 code is sufficiently different to not attempt to pick
there.

Pick-to: 6.3 6.2
Change-Id: I86a2f00ede6ca8fab8d4222f84dccf375c4a2194
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2021-12-17 12:34:27 +01:00
.github/workflows Repair github action workflow 2021-11-10 18:57:33 +01:00
bin Provide a qtpaths wrapper script when cross-building Qt 2021-11-08 13:41:03 +01:00
cmake CMake: Fix errors about missing qt_setup_tool_path_command.bat.in 2021-12-15 18:04:48 +01:00
coin coin: Fix sccache to be used when cross-compiling tests 2021-12-16 19:44:13 +01:00
config.tests wasm: add simd support 2021-10-05 11:30:06 +10:00
dist Add Qt 6.0.0 changes file 2020-11-16 10:02:08 +02:00
doc Drop Qt4 support 2021-12-07 01:56:17 +03:00
examples Examples: Remove unneeded target_include_directories 2021-12-17 10:38:50 +01:00
lib Purge all fonts 2015-08-18 19:59:14 +00:00
libexec Fix various configure time warnings about missing QT_BEGIN_NAMESPACE 2021-11-01 17:17:29 +02:00
mkspecs wasm: remove deprecated argument for source maps 2021-12-13 06:53:22 +00:00
qmake qmake/Xcode: Mark "Qt Preprocess" build phase as always out of date 2021-12-09 17:28:35 +01:00
src QByteArray: fix UB (precondition violation) in replace() 2021-12-17 12:34:27 +01:00
tests Blacklist flaky tst_qgraphicswidget:initialShow on OpenSUSE 2021-12-17 07:03:26 +01:00
util QLocale: Extend support for language codes 2021-12-09 03:45:08 +01:00
.cmake.conf Revert "CMake: Warn if cmake_minimum_required has an unsupported low version" 2021-10-04 15:55:10 +02:00
.gitattributes Give batch files CRLF line endings 2020-11-04 15:02:29 +00:00
.gitignore Assume qhelpgenerator in libexec instead of bin 2021-11-08 19:27:32 +01:00
.lgtm.yml Skip LGTM analysis for the bootstrap library and tools 2020-07-16 01:04:34 +02:00
.tag Update the git-archive export options 2012-09-07 15:39:31 +02:00
CMakeLists.txt Add _make_aab target 2021-11-30 20:16:13 +01:00
conanfile.py use short_path attribute 2021-12-07 14:19:38 +00:00
config_help.txt Document that schannel is on by default 2021-10-06 15:05:20 +02:00
configure Remove unsupported, host-related options from configure shell script 2021-08-05 02:44:27 +02:00
configure.bat Fix our usage of CMake script mode in Windows configure 2021-08-20 19:44:43 +02:00
configure.cmake Support configure -platform linux-clang-libc++ 2021-12-14 20:04:43 +01:00
dependencies.yaml Re-add dependencies.yaml now that qt5.git wip/qt6 builds fine 2019-09-18 13:19:31 +02:00
LICENSE.FDL Remove trailing whitespace in LICENSE.FDL 2021-11-26 18:28:49 +01:00
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.QT-LICENSE-AGREEMENT Update latest qt license agreement 2021-12-02 14:16:49 +00:00
qt_cmdline.cmake configure: Remove vestiges of handling QMAKE_* variable assignments 2021-11-24 10:47:10 +01:00
sync.profile Implement generating of a module cpp export header 2021-06-24 20:40:49 +02:00