RESOLVED FIXED 204459
Crash in com.apple.WebKit.WebContent at WebKit: WebKit::StorageAreaMap::loadValuesIfNeeded 
https://bugs.webkit.org/show_bug.cgi?id=204459
Summary Crash in com.apple.WebKit.WebContent at WebKit: WebKit::StorageAreaMap::loadV...
Sihui Liu
Reported 2019-11-21 10:28:34 PST
0 WebKit 0x00000001abdaa0bc WebKit::StorageAreaMap::loadValuesIfNeeded() + 276 (Optional.h:529) 1 WebKit 0x00000001abda9ff0 WebKit::StorageAreaMap::loadValuesIfNeeded() + 72 (StorageAreaMap.cpp:168) 2 WebKit 0x00000001abda97cc WebKit::StorageAreaImpl::item(WTF::String const&) + 48 (StorageAreaMap.cpp:88) 3 WebCore 0x00000001ac64df8c WebCore::JSStorage::getOwnPropertySlot(JSC::JSObject*, JSC::JSGlobalObject*, JSC::PropertyName, JSC::PropertySlot&) + 112 (JSStorage.cpp:167) 4 JavaScriptCore 0x00000001b424b300 llint_slow_path_get_by_id + 3988 (JSObjectInlines.h:160) 5 JavaScriptCore 0x00000001b3bfa254 llint_entry + 41460 6 JavaScriptCore 0x00000001b3c0e2d8 llint_entry + 123512 7 JavaScriptCore 0x00000001b3c0e2d8 llint_entry + 123512 8 JavaScriptCore 0x00000001b3c0e2d8 llint_entry + 123512 9 JavaScriptCore 0x00000001b3c0e2d8 llint_entry + 123512 10 JavaScriptCore 0x00000001b3befe18 vmEntryToJavaScript + 248 11 JavaScriptCore 0x00000001b418ac5c JSC::Interpreter::executeCall(JSC::JSGlobalObject*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 428 (JITCodeInlines.h:38) 12 JavaScriptCore 0x00000001b43779b0 JSC::profiledCall(JSC::JSGlobalObject*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&) + 184 (CallData.cpp:59) 13 WebCore 0x00000001acba754c WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&) + 1280 (JSExecState.h:73)
Attachments
Patch (2.36 KB, patch)
2019-11-21 10:30 PST, Sihui Liu 		no flags
DetailsFormatted DiffDiff
Patch for landing (4.88 KB, patch)
2019-11-21 16:47 PST, Sihui Liu 		no flags
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Sihui Liu
Comment 1 2019-11-21 10:30:56 PST
Created attachment 384066 [details] Patch
Sihui Liu
Comment 2 2019-11-21 10:32:26 PST
<rdar://problem/57383446>
Geoffrey Garen
Comment 3 2019-11-21 10:47:18 PST
Comment on attachment 384066 [details] Patch r=me Perhaps we should null check m_storageMapID in other functions too. That said, there's no obviously correct behavior in this surprising situation.
Sihui Liu
Comment 4 2019-11-21 16:47:04 PST
Created attachment 384105 [details] Patch for landing
WebKit Commit Bot
Comment 5 2019-11-21 17:32:45 PST
Comment on attachment 384105 [details] Patch for landing Clearing flags on attachment: 384105 Committed r252757: <https://trac.webkit.org/changeset/252757>
WebKit Commit Bot
Comment 6 2019-11-21 17:32:46 PST
All reviewed patches have been landed. Closing bug.
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