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https://github.com/LadybirdBrowser/ladybird
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943319453d
The RehighlightState designated initializer used `.position = {}`
which invokes TextPosition's default constructor, initializing line
and column to 0xFFFFFFFF (the "invalid" sentinel). This overrode
the struct's default member initializer of { 0, 0 }.
When advance_position() processed the first newline, it incremented
0xFFFFFFFF to 0x100000000, producing line numbers in the billions.
These bogus positions propagated into folding regions, causing an
out-of-bounds crash in Document::set_folding_regions() when viewing
page source on pages with <script> blocks.
Fix by explicitly initializing position to { 0, 0 }.
Fixes #8529.
19 lines
607 B
C++
19 lines
607 B
C++
/*
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* Copyright (c) 2026-present, the Ladybird developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <LibURL/URL.h>
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#include <LibWebView/SourceHighlighter.h>
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TEST_CASE(highlight_script_with_braces)
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{
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// Regression test for https://github.com/LadybirdBrowser/ladybird/issues/8529
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auto source = "<script>\nfunction foo() {\n return 1;\n}\n</script>"_string;
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URL::URL base_url {};
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auto result = WebView::highlight_source({}, base_url, source, Syntax::Language::HTML, WebView::HighlightOutputMode::SourceOnly);
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EXPECT(!result.is_empty());
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}
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