Bug 199061

Summary:

REGRESSION(r245912): Crash in TextIterator::range via visiblePositionForIndexUsingCharacterIterator

Product:

WebKit

Reporter:

Ryosuke Niwa <rniwa>

Component:

Accessibility

Assignee:

Ryosuke Niwa <rniwa>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

agomez, cfleizach, jcraig, webkit-bug-importer, wenson_hsieh

Priority:

Keywords:

InRadar, Regression

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

See Also:

https://bugs.webkit.org/show_bug.cgi?id=199431

Attachments:

Description	Flags
Fixes the bug	wenson_hsieh: review+

Description Ryosuke Niwa 2019-06-20 00:01:49 PDT

e.g.
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore             	0x00007fff488112cd WebCore::TextIterator::range() const + 61
1   com.apple.WebCore             	0x00007fff488110ec WebCore::CharacterIterator::range() const + 28
2   com.apple.WebCore             	0x00007fff49a2cb6a WebCore::visiblePositionForIndexUsingCharacterIterator(WebCore::Node&, int) + 2090
3   com.apple.WebCore             	0x00007fff4967a49e WebCore::AccessibilityRenderObject::visiblePositionForIndex(int) const + 174
4   com.apple.WebCore             	0x00007fff49647d93 WebCore::AXObjectCache::characterOffsetForIndex(int, WebCore::AccessibilityObject const*) + 67
5   com.apple.WebCore             	0x00007fff4966a11f WebCore::AccessibilityObject::rangeForPlainTextRange(WebCore::PlainTextRange const&) const + 191

<rdar://problem/51765259>

Comment 1 Ryosuke Niwa 2019-06-20 00:07:54 PDT

Created attachment 372543 [details]
Fixes the bug

Comment 2 chris fleizach 2019-06-20 00:12:29 PDT

(In reply to Ryosuke Niwa from comment #1)
> Created attachment 372543 [details]
> Fixes the bug

Thanks for handling this Ryosuke.

Comment 3 Ryosuke Niwa 2019-06-20 14:42:52 PDT

Committed r246653: <https://trac.webkit.org/changeset/246653>