[Webkit-unassigned] [Bug 146729] [GTK] Syscall param sendmsg(msg.msg_iov[0]) points to uninitialised byte(s) in IPC::Connection::sendOutgoingMessage

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=146729

--- Comment #4 from Michael Catanzaro <mcatanzaro at igalia.com> ---
Here's a third one, I guess it occurs when loading the overview:

==9639== Syscall param sendmsg(msg.msg_iov[1]) points to uninitialised byte(s)
==9639==    at 0x17CAF2FD: ??? (in /usr/lib64/libpthread-2.23.so)
==9639==    by 0xADE549D: IPC::Connection::sendOutgoingMessage(std::unique_ptr<IPC::MessageEncoder, std::default_delete<IPC::MessageEncoder> >) (ConnectionUnix.cpp:506)
==9639==    by 0xA925B01: IPC::Connection::sendOutgoingMessages() (Connection.cpp:820)
==9639==    by 0xA922D67: IPC::Connection::sendMessage(std::unique_ptr<IPC::MessageEncoder, std::default_delete<IPC::MessageEncoder> >, unsigned int, bool)::{lambda()#1}::operator()() (Connection.cpp:378)
==9639==    by 0xA92B101: WTF::Function<void ()>::CallableWrapper<IPC::Connection::sendMessage(std::unique_ptr<IPC::MessageEncoder, std::default_delete<IPC::MessageEncoder> >, unsigned int, bool)::{lambda()#1}>::call() (Function.h:101)
==9639==    by 0xA8F5E3A: WTF::Function<void ()>::operator()() const (Function.h:50)
==9639==    by 0x12D713EB: WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::{lambda()#1}::operator()() const (WorkQueueGeneric.cpp:88)
==9639==    by 0x12D727F7: WTF::Function<void ()>::CallableWrapper<WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::{lambda()#1}>::call() (Function.h:101)
==9639==    by 0xA8F5E3A: WTF::Function<void ()>::operator()() const (Function.h:50)
==9639==    by 0x12D30C03: WTF::RunLoop::performWork() (RunLoop.cpp:122)
==9639==    by 0x12D737DD: WTF::RunLoop::RunLoop()::{lambda(void*)#1}::operator()(void*) const (RunLoopGLib.cpp:66)
==9639==    by 0x12D73801: WTF::RunLoop::RunLoop()::{lambda(void*)#1}::_FUN(void*) (RunLoopGLib.cpp:68)
==9639==  Address 0x359d5e00 is in a rw- anonymous segment
==9639==  Uninitialised value was created by a stack allocation
==9639==    at 0xAA3E093: WebKit::WebPageProxy::loadAlternateHTMLString(WTF::String const&, WTF::String const&, WTF::String const&, API::Object*) (WebPageProxy.cpp:1051)

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