Testcase found while fuzzing mozilla-central rev 056c2a428e2d (built with --enable-address-sanitizer --enable-fuzzing).

    #0 0x7f7ba48479b6 in InvokeAsyncImpl<, mozilla::MozPromise<RefPtr<mozilla::dom::BlobImpl>, nsresult, false>, mozilla::MediaEncoder> /builds/worker/workspace/obj-build/dist/include/mozilla/MozPromise.h:1567:12
    #1 0x7f7ba48479b6 in InvokeAsync<, mozilla::MozPromise<RefPtr<mozilla::dom::BlobImpl>, nsresult, false>, mozilla::MediaEncoder, 0> /builds/worker/workspace/obj-build/dist/include/mozilla/MozPromise.h:1620:10
    #2 0x7f7ba48479b6 in mozilla::dom::MediaRecorder::Session::RequestData() /builds/worker/checkouts/gecko/dom/media/MediaRecorder.cpp:785:5
    #3 0x7f7ba4847502 in mozilla::dom::MediaRecorder::RequestData(mozilla::ErrorResult&) /builds/worker/checkouts/gecko/dom/media/MediaRecorder.cpp:1491:28
    #4 0x7f7ba2799e9f in mozilla::dom::MediaRecorder_Binding::requestData(JSContext*, JS::Handle<JSObject*>, void*, JSJitMethodCallArgs const&) /builds/worker/workspace/obj-build/dom/bindings/MediaRecorderBinding.cpp:1078:24
    #5 0x7f7ba3b060ce in bool mozilla::dom::binding_detail::GenericMethod<mozilla::dom::binding_detail::NormalThisPolicy, mozilla::dom::binding_detail::ThrowExceptions>(JSContext*, unsigned int, JS::Value*) /builds/worker/checkouts/gecko/dom/bindings/BindingUtils.cpp:3238:13
    #6 0x7f7baa210e30 in CallJSNative /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:435:13
    #7 0x7f7baa210e30 in js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:520:12
    #8 0x7f7baa212c69 in InternalCall(JSContext*, js::AnyInvokeArgs const&, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:580:10
    #9 0x7f7baa1fbeb2 in CallFromStack /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:584:10
    #10 0x7f7baa1fbeb2 in Interpret(JSContext*, js::RunState&) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:3244:16
    #11 0x7f7baa1dfbc3 in js::RunScript(JSContext*, js::RunState&) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:405:13
    #12 0x7f7baa210f6a in js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:552:13
    #13 0x7f7baa212c69 in InternalCall(JSContext*, js::AnyInvokeArgs const&, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:580:10
    #14 0x7f7baa212eeb in js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:597:8
    #15 0x7f7baa7c7f14 in js::CallSelfHostedFunction(JSContext*, JS::Handle<js::PropertyName*>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>) /builds/worker/checkouts/gecko/js/src/vm/SelfHosting.cpp:1642:10
    #16 0x7f7baa42ac80 in AsyncFunctionResume(JSContext*, JS::Handle<js::AsyncFunctionGeneratorObject*>, ResumeKind, JS::Handle<JS::Value>) /builds/worker/checkouts/gecko/js/src/vm/AsyncFunction.cpp:129:8
    #17 0x7f7baa551ecf in AsyncFunctionPromiseReactionJob /builds/worker/checkouts/gecko/js/src/builtin/Promise.cpp:1699:12
    #18 0x7f7baa551ecf in PromiseReactionJob(JSContext*, unsigned int, JS::Value*) /builds/worker/checkouts/gecko/js/src/builtin/Promise.cpp:1855:12
    #19 0x7f7baa210e30 in CallJSNative /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:435:13
    #20 0x7f7baa210e30 in js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:520:12
    #21 0x7f7baa212c69 in InternalCall(JSContext*, js::AnyInvokeArgs const&, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:580:10
    #22 0x7f7baa212eeb in js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:597:8
    #23 0x7f7baaa79a72 in JS::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) /builds/worker/checkouts/gecko/js/src/jsapi.cpp:2856:10
    #24 0x7f7ba2a093af in mozilla::dom::PromiseJobCallback::Call(mozilla::dom::BindingCallContext&, JS::Handle<JS::Value>, mozilla::ErrorResult&) /builds/worker/workspace/obj-build/dom/bindings/PromiseBinding.cpp:30:8
    #25 0x7f7b9e8e40de in Call /builds/worker/workspace/obj-build/dist/include/mozilla/dom/PromiseBinding.h:90:12
    #26 0x7f7b9e8e40de in Call /builds/worker/workspace/obj-build/dist/include/mozilla/dom/PromiseBinding.h:103:12
    #27 0x7f7b9e8e40de in mozilla::PromiseJobRunnable::Run(mozilla::AutoSlowOperation&) /builds/worker/checkouts/gecko/xpcom/base/CycleCollectedJSContext.cpp:212:18
    #28 0x7f7b9e8c24cd in mozilla::CycleCollectedJSContext::PerformMicroTaskCheckPoint(bool) /builds/worker/checkouts/gecko/xpcom/base/CycleCollectedJSContext.cpp:647:17
    #29 0x7f7ba3b29d0a in LeaveMicroTask /builds/worker/workspace/obj-build/dist/include/mozilla/CycleCollectedJSContext.h:233:7
    #30 0x7f7ba3b29d0a in mozilla::dom::CallbackObject::CallSetup::~CallSetup() /builds/worker/checkouts/gecko/dom/bindings/CallbackObject.cpp:393:11
    #31 0x7f7ba5d133a7 in mozilla::dom::MessageListener::ReceiveMessage(mozilla::dom::ReceiveMessageArgument const&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&, char const*, mozilla::dom::CallbackObject::ExceptionHandling, JS::Realm*) /builds/worker/workspace/obj-build/dist/include/mozilla/dom/MessageManagerBinding.h:784:3
    #32 0x7f7ba5d12f6e in mozilla::dom::JSActor::CallReceiveMessage(JSContext*, mozilla::dom::JSActorMessageMeta const&, JS::Handle<JS::Value>, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&) /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSActor.cpp:272:22
    #33 0x7f7ba5d1361f in mozilla::dom::JSActor::ReceiveMessage(JSContext*, mozilla::dom::JSActorMessageMeta const&, JS::Handle<JS::Value>, mozilla::ErrorResult&) /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSActor.cpp:285:3
    #34 0x7f7ba5d194ce in mozilla::dom::JSActorManager::ReceiveRawMessage(mozilla::dom::JSActorMessageMeta const&, mozilla::Maybe<mozilla::dom::ipc::StructuredCloneData>&&, mozilla::Maybe<mozilla::dom::ipc::StructuredCloneData>&&) /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSActorManager.cpp:184:14
    #35 0x7f7ba5cefdc4 in mozilla::dom::WindowGlobalChild::RecvRawMessage(mozilla::dom::JSActorMessageMeta const&, mozilla::Maybe<mozilla::dom::ClonedMessageData> const&, mozilla::Maybe<mozilla::dom::ClonedMessageData> const&) /builds/worker/checkouts/gecko/dom/ipc/WindowGlobalChild.cpp:581:3
    #36 0x7f7ba070ef79 in mozilla::dom::PWindowGlobalChild::OnMessageReceived(IPC::Message const&) /builds/worker/workspace/obj-build/ipc/ipdl/PWindowGlobalChild.cpp:1196:61
    #37 0x7f7b9ff73793 in mozilla::dom::PContentChild::OnMessageReceived(IPC::Message const&) /builds/worker/workspace/obj-build/ipc/ipdl/PContentChild.cpp:8701:32
    #38 0x7f7b9fcfe35a in mozilla::ipc::MessageChannel::DispatchAsyncMessage(mozilla::ipc::ActorLifecycleProxy*, IPC::Message const&) /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:2157:25
    #39 0x7f7b9fcfa9be in mozilla::ipc::MessageChannel::DispatchMessage(IPC::Message&&) /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:2081:9
    #40 0x7f7b9fcfc378 in mozilla::ipc::MessageChannel::RunMessage(mozilla::ipc::MessageChannel::MessageTask&) /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:1929:3
    #41 0x7f7b9fcfcedb in mozilla::ipc::MessageChannel::MessageTask::Run() /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:1960:13
    #42 0x7f7b9eab5d96 in mozilla::RunnableTask::Run() /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:472:16
    #43 0x7f7b9eab2953 in mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:760:26
    #44 0x7f7b9eab0827 in mozilla::TaskController::ExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:611:15
    #45 0x7f7b9eab0c7d in mozilla::TaskController::ProcessPendingMTTask(bool) /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:395:36
    #46 0x7f7b9eabd404 in operator() /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:136:37
    #47 0x7f7b9eabd404 in mozilla::detail::RunnableFunction<mozilla::TaskController::InitializeInternal()::$_4>::Run() /builds/worker/checkouts/gecko/xpcom/threads/nsThreadUtils.h:534:5
    #48 0x7f7b9ead8724 in nsThread::ProcessNextEvent(bool, bool*) /builds/worker/checkouts/gecko/xpcom/threads/nsThread.cpp:1158:16
    #49 0x7f7b9eae329c in NS_ProcessNextEvent(nsIThread*, bool) /builds/worker/checkouts/gecko/xpcom/threads/nsThreadUtils.cpp:548:10
    #50 0x7f7b9fd05b64 in mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) /builds/worker/checkouts/gecko/ipc/glue/MessagePump.cpp:109:5
    #51 0x7f7b9fc0ffb1 in RunInternal /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:335:10
    #52 0x7f7b9fc0ffb1 in RunHandler /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:328:3
    #53 0x7f7b9fc0ffb1 in MessageLoop::Run() /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:310:3
    #54 0x7f7ba64df0b7 in nsBaseAppShell::Run() /builds/worker/checkouts/gecko/widget/nsBaseAppShell.cpp:137:27
    #55 0x7f7ba9fb8b0f in XRE_RunAppShell() /builds/worker/checkouts/gecko/toolkit/xre/nsEmbedFunctions.cpp:902:20
    #56 0x7f7b9fc0ffb1 in RunInternal /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:335:10
    #57 0x7f7b9fc0ffb1 in RunHandler /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:328:3
    #58 0x7f7b9fc0ffb1 in MessageLoop::Run() /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:310:3
    #59 0x7f7ba9fb829f in XRE_InitChildProcess(int, char**, XREChildData const*) /builds/worker/checkouts/gecko/toolkit/xre/nsEmbedFunctions.cpp:733:34
    #60 0x560383b569fd in content_process_main(mozilla::Bootstrap*, int, char**) /builds/worker/checkouts/gecko/browser/app/../../ipc/contentproc/plugin-container.cpp:57:28
    #61 0x560383b56e21 in main /builds/worker/checkouts/gecko/browser/app/nsBrowserApp.cpp:309:18
    #62 0x7f7bbed2e0b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16

Related to bug 1464268?

Bugmon Analysis:
Verified bug as reproducible on mozilla-central 20210310215846-db7158dfb86d.
The bug appears to have been introduced in the following build range:

Start: 160b47b7163e1a80ac366e0ef9fc10b631c35c03 (20210211154112)
End: c5a7e3ee7a6307a61d4fa7f2bda6ca5345d284ea (20210211135354)
Pushlog: https://hg.mozilla.org/mozilla-unified/pushloghtml?fromchange=160b47b7163e1a80ac366e0ef9fc10b631c35c03&tochange=c5a7e3ee7a6307a61d4fa7f2bda6ca5345d284ea

Set release status flags based on info from the regressing bug 1464268

This is the non-debug version of bug 1697521.

Bugmon Analysis
No valid actions for resolution (DUPLICATE)
Removing bugmon keyword as no further action possible. Please review the bug and re-add the keyword for further analysis.