Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: a21ae4a906e1d4c20696c86b22a8082f643c0397
https://github.com/WebKit/WebKit/commit/a21ae4a906e1d4c20696c86b22a8082f643c0397
Author: Antti Koivisto <[email protected]>
Date: 2026-06-22 (Mon, 22 Jun 2026)
Changed paths:
A
LayoutTests/fast/css/getComputedStyle/computed-style-coordinated-shorthand-layer-count-crash-expected.txt
A
LayoutTests/fast/css/getComputedStyle/computed-style-coordinated-shorthand-layer-count-crash.html
M Source/WebCore/SaferCPPExpectations/UncountedLocalVarsCheckerExpectations
M Source/WebCore/style/StyleExtractorCustom.h
Log Message:
-----------
REGRESSION(314242@main): Crash in Style::extractFillLayerPropertyShorthand
https://bugs.webkit.org/show_bug.cgi?id=317585
rdar://179879711
Reviewed by Alan Baradlay.
extractFillLayerPropertyShorthand (StyleExtractorCustom.h) assumes every
per-longhand computed-value
list has exactly layerCount items which is not necessarily true.
Test:
fast/css/getComputedStyle/computed-style-coordinated-shorthand-layer-count-crash.html
*
LayoutTests/fast/css/getComputedStyle/computed-style-coordinated-shorthand-layer-count-crash-expected.txt:
Added.
*
LayoutTests/fast/css/getComputedStyle/computed-style-coordinated-shorthand-layer-count-crash.html:
Added.
* Source/WebCore/style/StyleExtractorCustom.h:
(WebCore::Style::extractFillLayerPropertyShorthand):
Index each longhand list with item(layerIndex % list.size()), restoring the
pre-regression used-value repeat semantics.
Canonical link: https://commits.webkit.org/315603@main
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