Bug 215800 – Segfault when loading HTTPS page with no certificates installed

• Status: RESOLVED
• Resolution: INVALID
• Component: WPE WebKit

[Nazar Mokrynskyi]

Initially reported at https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1388, but appears to be upstream issue.

I had an Ubuntu container where ca-certificates was not installed.
When opening HTTPS page in iframe within HTTP page nothing happens/renders, but when loading HTTPS page directly it segfaults beautifully:

#0  0x00007f404c46c7e3 in s_loadFailed (failing_uri=0x7f40340140f0 "\360\364\001\070@\177", error=0x1, data=<optimized out>) at ../ext/wpe/WPEThreadedView.cpp:214
#1  0x00007f4056182ff5 in ?? () from target:/lib/x86_64-linux-gnu/libffi.so.7
#2  0x00007f405618240a in ?? () from target:/lib/x86_64-linux-gnu/libffi.so.7
#3  0x00007f4056aa830d in g_cclosure_marshal_generic () from target:/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#4  0x00007f4056aa7802 in g_closure_invoke () from target:/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5  0x00007f4056abb814 in ?? () from target:/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#6  0x00007f4056ac645d in g_signal_emit_valist () from target:/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#7  0x00007f4056ac70d3 in g_signal_emit () from target:/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#8  0x00007f3f6847e326 in webkitWebViewLoadFailedWithTLSErrors(_WebKitWebView*, char const*, _GError*, GTlsCertificateFlags, _GTlsCertificate*) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#9  0x00007f3f6845beaa in NavigationClient::didFailProvisionalNavigationWithError(WebKit::WebPageProxy&, WebKit::FrameInfoData&&, API::Navigation*, WebCore::ResourceError const&, API::Object*) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#10 0x00007f3f6839e3ab in WebKit::WebPageProxy::didFailProvisionalLoadForFrameShared(WTF::Ref<WebKit::WebProcessProxy, WTF::DumbPtrTraits<WebKit::WebProcessProxy> >&&, WTF::ObjectIdentifier<WebCore::FrameIdentifierType>, WebKit::FrameInfoData&&, WebCore::ResourceRequest&&, unsigned long, WTF::String const&, WebCore::ResourceError const&, WebCore::WillContinueLoading, WebKit::UserData const&) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#11 0x00007f3f683c081c in WebKit::WebPageProxy::didFailProvisionalLoadForFrame(WTF::ObjectIdentifier<WebCore::FrameIdentifierType>, WebKit::FrameInfoData&&, WebCore::ResourceRequest&&, unsigned long, WTF::String const&, WebCore::ResourceError const&, WebCore::WillContinueLoading, WebKit::UserData const&) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#12 0x00007f3f680e2b59 in void IPC::handleMessage<Messages::WebPageProxy::DidFailProvisionalLoadForFrame, WebKit::WebPageProxy, void (WebKit::WebPageProxy::*)(WTF::ObjectIdentifier<WebCore::FrameIdentifierType>, WebKit::FrameInfoData&&, WebCore::ResourceRequest&&, unsigned long, WTF::String const&, WebCore::ResourceError const&, WebCore::WillContinueLoading, WebKit::UserData const&)>(IPC::Decoder&, WebKit::WebPageProxy*, void (WebKit::WebPageProxy::*)(WTF::ObjectIdentifier<WebCore::FrameIdentifierType>, WebKit::FrameInfoData&&, WebCore::ResourceRequest&&, unsigned long, WTF::String const&, WebCore::ResourceError const&, WebCore::WillContinueLoading, WebKit::UserData const&)) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#13 0x00007f3f680bdc0f in WebKit::WebPageProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#14 0x00007f3f682dff30 in IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::Decoder&) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#15 0x00007f3f68395dc3 in non-virtual thunk to WebKit::WebProcessProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#16 0x00007f3f682d8bf8 in IPC::Connection::dispatchMessage(IPC::Decoder&) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#17 0x00007f3f682da72d in IPC::Connection::dispatchMessage(std::unique_ptr<IPC::Decoder, std::default_delete<IPC::Decoder> >) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#18 0x00007f3f682dafc3 in IPC::Connection::dispatchIncomingMessages() () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#19 0x00007f3f6b1761d8 in WTF::RunLoop::performWork() () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#20 0x00007f3f6b1e2d0d in WTF::RunLoop::RunLoop()::{lambda(void*)#1}::_FUN(void*) () from target:/lib/x86_64-linux-gnu/libWPEWebKit-1.0.so.3
#21 0x00007f40569bbe8e in g_main_context_dispatch () from target:/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f40569bc240 in ?? () from target:/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f40569bc533 in g_main_loop_run () from target:/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f404c46c606 in WPEContextThread::s_viewThread (data=0x7f3fa0005270) at ../ext/wpe/WPEThreadedView.cpp:156
#25 0x00007f40569e5931 in ?? () from target:/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f40564f5609 in start_thread () from target:/lib/x86_64-linux-gnu/libpthread.so.0
#27 0x00007f40563ff103 in clone () from target:/lib/x86_64-linux-gnu/libc.so.6

Built from source:
libwpe 1.7.1
libwpebackend-fdo 1.7.1
libwpewebkit 2.29.90

[Carlos Garcia Campos]

The crash seems to be in gst, because it's using the same callback for  WebKitWebView::load-failed and WebKitWebView::load-failed-with-tls-errors, but they have different signatures. Please, feel free to reopen if this is still crashing after fixing gst.