Bug 199388 – Null dereference under StorageManager::destroySessionStorageNamespace()

• Status: RESOLVED
• Resolution: FIXED
• Component: WebKit2

[Chris Dumez]

Null dereference under StorageManager::destroySessionStorageNamespace():
Thread 6 name:  Dispatch queue: com.apple.WebKit.StorageManager
Thread 6 Crashed:
0   WebKit                        	0x00000001a60b7078 WTF::HashTable<WTF::ObjectIdentifier<IPC::Connection::UniqueIDType>, WTF::ObjectIdentifier<IPC::Connection::UniqueIDType>, WTF::IdentityExtractor, WTF::ObjectIdentifierHash<IPC::Connection::UniqueIDType>, WTF::HashTraits<WTF::ObjectIdentifier<IPC::Connection::UniqueIDType> >, WTF::HashTraits<WTF::ObjectIdentifier<IPC::Connection::UniqueIDType> > >::HashTable(WTF::HashTable<WTF::ObjectIdentifier<IPC::Connection::UniqueIDType>, WTF::ObjectIdentifier<IPC::Connection::UniqueIDType>, WTF::IdentityExtractor, WTF::ObjectIdentifierHash<IPC::Connection::UniqueIDType>, WTF::HashTraits<WTF::ObjectIdentifier<IPC::Connection::UniqueIDType> >, WTF::HashTraits<WTF::ObjectIdentifier<IPC::Connection::UniqueIDType> > > const&) + 24 (HashTable.h:397)
1   WebKit                        	0x00000001a60b6f58 WTF::Detail::CallableWrapper<WebKit::StorageManager::destroySessionStorageNamespace(unsigned long long)::$_10, void>::call() + 56 (HashTable.h:1324)
2   WebKit                        	0x00000001a60b6f58 WTF::Detail::CallableWrapper<WebKit::StorageManager::destroySessionStorageNamespace(unsigned long long)::$_10, void>::call() + 56 (HashTable.h:1324)
3   libdispatch.dylib             	0x000000019e7f1688 _dispatch_call_block_and_release + 24 (init.c:1408)
4   libdispatch.dylib             	0x000000019e7f21fc _dispatch_client_callout + 16 (object.m:495)
5   libdispatch.dylib             	0x000000019e79e450 _dispatch_lane_serial_drain$VARIANT$mp + 608 (inline_internal.h:2487)
6   libdispatch.dylib             	0x000000019e79ee44 _dispatch_lane_invoke$VARIANT$mp + 420 (queue.c:3820)
7   libdispatch.dylib             	0x000000019e7a837c _dispatch_workloop_worker_thread + 588 (queue.c:6380)
8   libsystem_pthread.dylib       	0x000000019e841f5c _pthread_wqthread + 304 (pthread.c:2329)
9   libsystem_pthread.dylib       	0x000000019e844aa0 start_wqthread + 8

[Chris Dumez]

<rdar://problem/52030641>

[Chris Dumez]

Created attachment 373329 [details]
Patch

[WebKit Commit Bot]

Comment on attachment 373329 [details]
Patch

Clearing flags on attachment: 373329

Committed r247057: <https://trac.webkit.org/changeset/247057>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.