diff options
author | Shawn Rutledge <shawn.rutledge@qt.io> | 2022-09-09 22:35:24 +0200 |
---|---|---|
committer | Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> | 2022-09-10 12:49:59 +0000 |
commit | 42f1166a7f2bba2b198e54c7c7c7879e885f2d5a (patch) | |
tree | db454e90d4554b3ca3ea6d47545b91cd49c4352e | |
parent | 44c6daf7b163eeee346f555731b74854450804b5 (diff) |
Avoid crash in QTextMarkdownWriter::writeBlock()
The inner loop would go out of bounds whenever it tried to find the end
of a run of spaces in a fragment that contained only spaces.
Fixes: QTBUG-104999
Change-Id: I5dda03b31194fff12f6052c458a0eb85d0be5c2b
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 9807c4e5afc953444a4b5a161ceb31c68fdf2484)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
-rw-r--r-- | src/gui/text/qtextmarkdownwriter.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gui/text/qtextmarkdownwriter.cpp b/src/gui/text/qtextmarkdownwriter.cpp index 4009b77d88..f55269fe41 100644 --- a/src/gui/text/qtextmarkdownwriter.cpp +++ b/src/gui/text/qtextmarkdownwriter.cpp @@ -568,13 +568,13 @@ int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ign } if (wrap && col + markers.length() * 2 + fragmentText.length() > ColumnLimit) { int i = 0; - int fragLen = fragmentText.length(); + const int fragLen = fragmentText.length(); bool breakingLine = false; while (i < fragLen) { if (col >= ColumnLimit) { m_stream << Newline << wrapIndentString; col = m_wrappedLineIndent; - while (fragmentText[i].isSpace()) + while (i < fragLen && fragmentText[i].isSpace()) ++i; } int j = i + ColumnLimit - col; |