Bug 175903 - REGRESSION (r221052): DumpRenderTree crashed in com.apple.JavaScriptCore: JSC::Yarr::YarrCodeBlock::execute + 137
Summary: REGRESSION (r221052): DumpRenderTree crashed in com.apple.JavaScriptCore: JSC...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: Other
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Michael Saboff
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2017-08-23 13:26 PDT by Michael Saboff
Modified: 2017-08-23 15:24 PDT (History)
6 users (show)

See Also:

Attachments
Patch (5.22 KB, patch)
2017-08-23 14:04 PDT, Michael Saboff 		no flags Details | Formatted Diff | Diff
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Description Michael Saboff 2017-08-23 13:26:23 PDT 
Crashing in code generated by generateCharacterClassGreedy() with something like "a\u{10410}\u{10410}b".match(/a(\u{10410}*)bc|a(\u{10410}*)b/ui).

Looks like we increment "count" before checking is we are at the end of the string.
Comment 1 Michael Saboff 2017-08-23 13:26:46 PDT 
<rdar://problem/34035972>
Comment 2 Michael Saboff 2017-08-23 14:04:48 PDT 
Created attachment 318914 [details]
Patch
Comment 3 Saam Barati 2017-08-23 14:55:03 PDT 
Comment on attachment 318914 [details]
Patch

r=me
Comment 4 WebKit Commit Bot 2017-08-23 15:24:34 PDT 
Comment on attachment 318914 [details]
Patch

Clearing flags on attachment: 318914

Committed r221111: <http://trac.webkit.org/changeset/221111>
Comment 5 WebKit Commit Bot 2017-08-23 15:24:35 PDT 
All reviewed patches have been landed.  Closing bug.