TextOffsetMapping::ComputeTextOffset() crashes with collapsed whitespace |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=6564425306472448 Fuzzer: bj_broddelwerk Job Type: linux_msan_content_shell_drt Platform Id: linux Crash Type: Abrt Crash Address: 0x053900000001 Crash State: blink::TextIteratorAlgorithm<blink::EditingAlgorithm<blink::FlatTreeTraversal> > blink::TextIteratorAlgorithm<blink::EditingAlgorithm<blink::FlatTreeTraversal> > blink::TextOffsetMapping::ComputeTextOffset Sanitizer: memory (MSAN) Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=550102:550107 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6564425306472448 Issue filed automatically. See https://github.com/google/clusterfuzz-tools for more information.
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Apr 13 2018
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/1324be868df000cb2e070199ce2d10cd0c5a2706 (Make NextWordPosition() to utilize TextOffsetMapping). If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
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Apr 13 2018
I'm working now...
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Apr 13 2018
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Apr 17 2018
Actually hit text_iterator.cc(207) - start <= end ( - start=DIV (editable)@beforeAnchor - end=BODY (editable) (focused)@offsetInAnchor[0])
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Apr 17 2018
NextWordPosition(BODY@0) crahses
Minimal HTML to reproduce. Note: A space after <BODY> is required to reproduce.
<body contenteditable> <div><a></a></div></body>
<script>
const selection = window.getSelection();
selection.collapse(document.body, 0);
selection.modify('extend', 'forward', 'word');
</script>
Layout Tree
layer at (0,0) size 800x600
LayoutBlockFlow {HTML} at (0,0) size 800x600
LayoutBlockFlow {BODY} at (8,8) size 784x584
LayoutBlockFlow {DIV} at (0,0) size 784x0
LayoutInline {A} at (0,0) size 0x0
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Apr 17 2018
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/dec40a582a3805fb28dfd67ba49fc2cdb28a1b6c commit dec40a582a3805fb28dfd67ba49fc2cdb28a1b6c Author: Yoshifumi Inoue <yosin@chromium.org> Date: Tue Apr 17 04:30:18 2018 Revert "Make NextWordPosition() to utilize TextOffsetMapping" This reverts commit 1324be868df000cb2e070199ce2d10cd0c5a2706 for M67/Beta TextOffsetMapping is not ready for release. It should support edge cases. TBR=yosin@chromium.org Bug: 832055 , 832061 , 832101 , 832261 , 832350 , 832497 , 832639 , 833172 , 833180 Change-Id: Iac5f58716619a626650088a55109922daf1a4f3a Reviewed-on: https://chromium-review.googlesource.com/1013445 Reviewed-by: Yoshifumi Inoue <yosin@chromium.org> Cr-Commit-Position: refs/branch-heads/3396@{#36} Cr-Branched-From: 9ef2aa869bc7bc0c089e255d698cca6e47d6b038-refs/heads/master@{#550428} [modify] https://crrev.com/dec40a582a3805fb28dfd67ba49fc2cdb28a1b6c/third_party/blink/renderer/core/editing/visible_units_word.cc [modify] https://crrev.com/dec40a582a3805fb28dfd67ba49fc2cdb28a1b6c/third_party/blink/renderer/core/editing/visible_units_word_test.cc
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Apr 17 2018
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Apr 17 2018
Another HTML to reproduce:
<body id="target"> <div><a></a></div>
<script>
const selection = window.getSelection();
selection.collapse(document.getElementById('target'), 0);
selection.modify('extend', 'forward', 'word');
</script>
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Apr 17 2018
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Apr 17 2018
Issue 833735 has been merged into this issue.
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Apr 17 2018
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Apr 17 2018
In review: http://crrev.com/c/1013852
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Apr 17 2018
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Apr 17 2018
Issue 833509 has been merged into this issue.
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Apr 17 2018
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Apr 17 2018
Issue 833473 has been merged into this issue.
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Apr 17 2018
Issue 833433 has been merged into this issue.
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Apr 17 2018
Issue 833330 has been merged into this issue.
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Apr 17 2018
Issue 833283 has been merged into this issue.
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Apr 18 2018
Issue 833905 has been merged into this issue.
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Apr 18 2018
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Apr 18 2018
Issue 833962 has been merged into this issue.
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Apr 18 2018
Issue 833935 has been merged into this issue.
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Apr 18 2018
Issue 833933 has been merged into this issue.
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Apr 18 2018
Issue 833932 has been merged into this issue.
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Apr 18 2018
Issue 833930 has been merged into this issue.
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Apr 18 2018
Issue 833903 has been merged into this issue.
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Apr 18 2018
Issue 833899 has been merged into this issue.
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Apr 18 2018
Issue 833893 has been merged into this issue.
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Apr 18 2018
Issue 833891 has been merged into this issue.
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Apr 18 2018
Issue 833887 has been merged into this issue.
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Apr 18 2018
Issue 833884 has been merged into this issue.
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Apr 18 2018
Issue 833794 has been merged into this issue.
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Apr 23 2018
Issue 835651 has been merged into this issue.
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Apr 23 2018
Issue 835535 has been merged into this issue.
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May 2 2018
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May 2 2018
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May 7 2018
ClusterFuzz testcase 6564425306472448 is flaky and no longer crashes, so closing issue. If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue. |
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Comment 1 by ClusterFuzz
, Apr 13 2018Labels: Test-Predator-Auto-Components