Bug 301822 – REGRESSION(302307@main): [GLib] Introduced null pointer derefs in UIProcess

• Component: WebKitGTK
• Status: RESOLVED FIXED

[Philippe Normand]

(gdb) bt
#0  0x00007f2c50ffc1b4 in WTF::Detail::CallableWrapper<webkitFaviconDatabaseGetFaviconInternal(_WebKitFaviconDatabase*, char const*, bool, _GCancellable*, void (*)(_GObject*, _GAsyncResult*, void*), void*)::$_0, void, WTF::Vector<sk_sp<SkImage>, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&>::call(WTF::Vector<sk_sp<SkImage>, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&) ()
    at /var/home/phil/WebKit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4
#1  0x00007f2c50feb9be in WTF::CompletionHandler<void (WTF::Vector<sk_sp<SkImage>, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&)>::operator()(WTF::Vector<sk_sp<SkImage>, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&) () at /var/home/phil/WebKit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4
#2  0x00007f2c50feb711 in WTF::Detail::CallableWrapper<WebKit::IconDatabase::loadIconsForPageURL(WTF::String const&, WebKit::IconDatabase::AllowDatabaseWrite, WTF::CompletionHandler<void (WTF::Vector<sk_sp<SkImage>, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&)>&&)::$_0::operator()()::{lambda()#1}, void>::call() () at /var/home/phil/WebKit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4
#3  0x00007f2c4b30d73a in WTF::RunLoop::performWork() () at /var/home/phil/WebKit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1
#4  0x00007f2c4b3f8309 in WTF::RunLoop::RunLoop()::$_0::__invoke(void*) () at /var/home/phil/WebKit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1
#5  0x00007f2c4b3f681d in WTF::RunLoop::$_1::__invoke(_GSource*, int (*)(void*), void*) () at /var/home/phil/WebKit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1
#6  0x00007f2c4b5fa2a3 in g_main_dispatch (context=0x32b42c20) at ../glib/gmain.c:3565
#7  g_main_context_dispatch_unlocked (context=0x32b42c20) at ../glib/gmain.c:4425
#8  0x00007f2c4b6031f8 in g_main_context_iterate_unlocked (context=context@entry=0x32b42c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4490
#9  0x00007f2c4b6033a3 in g_main_context_iteration (context=context@entry=0x32b42c20, may_block=may_block@entry=1) at ../glib/gmain.c:4556
#10 0x00007f2c4b81d11d in g_application_run (application=0x32c4e9d0, argc=<optimized out>, argv=<optimized out>) at ../gio/gapplication.c:2741
#11 0x000000000021c447 in main ()

Repro: https://webvideo-demo.pages.dev/

[Philippe Normand]

Pull request: https://github.com/WebKit/WebKit/pull/53309

[EWS]

Committed 302452@main (f241d8685cb9): <https://commits.webkit.org/302452@main>

Reviewed commits have been landed. Closing PR #53309 and removing active labels.