[Webkit-unassigned] [Bug 177800] New: [GTK] Network process crash in WebKit::ChildProcess::didReceiveInvalidMessage

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=177800

            Bug ID: 177800
           Summary: [GTK] Network process crash in
                    WebKit::ChildProcess::didReceiveInvalidMessage
           Product: WebKit
           Version: Other
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: bugs-noreply at webkitgtk.org

Created attachment 322498

  --> https://bugs.webkit.org/attachment.cgi?id=322498&action=review

Backtrace

We have 2641 reports of this network process crash in WebKit::ChildProcess::didReceiveInvalidMessage:

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 WTFCrash at /usr/src/debug/webkitgtk-2.18.0/Source/WTF/wtf/Assertions.cpp:278
 #1 WebKit::ChildProcess::didReceiveInvalidMessage at /usr/src/debug/webkitgtk-2.18.0/Source/WebKit/Shared/ChildProcess.cpp:206
 #2 IPC::Connection::dispatchMessage at /usr/src/debug/webkitgtk-2.18.0/Source/WebKit/Platform/IPC/Connection.cpp:942
 #3 IPC::Connection::dispatchOneMessage at /usr/src/debug/webkitgtk-2.18.0/Source/WebKit/Platform/IPC/Connection.cpp:959
 #4 WTF::Function<void ()>::operator()() const at /usr/src/debug/webkitgtk-2.18.0/Source/WTF/wtf/Function.h:56
 #5 WTF::RunLoop::performWork at /usr/src/debug/webkitgtk-2.18.0/Source/WTF/wtf/RunLoop.cpp:106
 #6 WTF::RunLoop::<lambda(gpointer)>::operator() at /usr/src/debug/webkitgtk-2.18.0/Source/WTF/wtf/glib/RunLoopGLib.cpp:68
 #7 WTF::RunLoop::<lambda(gpointer)>::_FUN(gpointer) at /usr/src/debug/webkitgtk-2.18.0/Source/WTF/wtf/glib/RunLoopGLib.cpp:70
 #12 WTF::RunLoop::run at /usr/src/debug/webkitgtk-2.18.0/Source/WTF/wtf/glib/RunLoopGLib.cpp:96
 #13 WebKit::ChildProcessMain<WebKit::NetworkProcess, WebKit::NetworkProcessMain> at /usr/src/debug/webkitgtk-2.18.0/Source/WebKit/Shared/unix/ChildProcessMain.h:61

I'm attaching a full backtrace, but I'm afraid it won't be enough to determine which message is invalid. Note in particular frame three:

#3  0x00007faabaf13595 in IPC::Connection::dispatchOneMessage (this=0x7faaa64f7000) at /usr/src/debug/webkitgtk-2.18.0/Source/WebKit/Platform/IPC/Connection.cpp:959
        message = std::unique_ptr<IPC::Decoder> containing 0x0

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