Open Bug 1813295 Opened 1 year ago Updated 1 year ago

crash at null in [@ gbm_bo_get_fd]

Categories

(Core :: Graphics: CanvasWebGL, defect)

Product:
Core
Component:
Graphics: CanvasWebGL
Type:
defect

Tracking

()

Tracking Flags:
Tracking Status
firefox111 --- affected

People

(Reporter: tsmith, Unassigned, NeedInfo)

References

(Blocks 1 open bug)

Details

(Keywords: crash, testcase)

Attachments

(1 file)

testcase.html
218 bytes, text/html
Details
Attached file testcase.html —

Found while fuzzing m-c 20230127-f75c73066b88 (--enable-address-sanitizer --enable-fuzzing)

To reproduce via Grizzly Replay:

$ pip install fuzzfetch grizzly-framework
$ python -m fuzzfetch -a --fuzzing -n firefox
$ python -m grizzly.replay ./firefox/firefox testcase.html

I've only been able to reproduce this on a Ubuntu 22.04 VM.

==118409==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f8011c98024 bp 0x7f80134bf290 sp 0x7f80134bf278 T38)
==118409==The signal is caused by a READ memory access.
==118409==Hint: address points to the zero page.
    #0 0x7f8011c98024 in gbm_bo_get_fd build/../src/gbm/main/gbm.c:333:22
    #1 0x7f80417add5d in mozilla::widget::nsGbmLib::GetFd(gbm_bo*) /builds/worker/checkouts/gecko/widget/gtk/DMABufLibWrapper.h:86:12
    #2 0x7f80417ada6a in DMABufSurfaceRGBA::OpenFileDescriptorForPlane(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&, int) /builds/worker/checkouts/gecko/widget/gtk/DMABufSurface.cpp:345:21
    #3 0x7f80417b1946 in OpenFileDescriptors /builds/worker/checkouts/gecko/widget/gtk/DMABufSurface.cpp:305:10
    #4 0x7f80417b1946 in DMABufSurfaceRGBA::Serialize(mozilla::layers::SurfaceDescriptor&) /builds/worker/checkouts/gecko/widget/gtk/DMABufSurface.cpp:542:8
    #5 0x7f803adf5f38 in mozilla::gl::SharedSurface_DMABUF::ToSurfaceDescriptor() /builds/worker/checkouts/gecko/gfx/gl/SharedSurfaceDMABUF.cpp:86:18
    #6 0x7f803adf63e0 in mozilla::gl::SurfaceFactory_DMABUF::CanCreateSurface(mozilla::gl::GLContext&) /builds/worker/checkouts/gecko/gfx/gl/SharedSurfaceDMABUF.cpp:115:21
    #7 0x7f803adf608b in mozilla::gl::SurfaceFactory_DMABUF::Create(mozilla::gl::GLContext&) /builds/worker/checkouts/gecko/gfx/gl/SharedSurfaceDMABUF.cpp:97:22
    #8 0x7f803ae542d1 in mozilla::gl::SurfaceFactory::Create(mozilla::gl::GLContext*, mozilla::layers::TextureType) /builds/worker/checkouts/gecko/gfx/gl/SharedSurface.cpp:104:16
    #9 0x7f803e1e91e7 in mozilla::InitSwapChain(mozilla::gl::GLContext&, mozilla::gl::SwapChain&, mozilla::layers::TextureType) /builds/worker/checkouts/gecko/dom/canvas/WebGLContext.cpp:1000:25
    #10 0x7f803e1ebb84 in mozilla::WebGLContext::CopyToSwapChain(mozilla::WebGLFramebuffer*, mozilla::layers::TextureType, mozilla::webgl::SwapChainOptions const&) /builds/worker/checkouts/gecko/dom/canvas/WebGLContext.cpp:1057:3
    #11 0x7f803e156313 in mozilla::HostWebGLContext::CopyToSwapChain(unsigned long, mozilla::layers::TextureType, mozilla::webgl::SwapChainOptions const&) const /builds/worker/checkouts/gecko/dom/canvas/HostWebGLContext.h:177:28
    #12 0x7f803e2ef2e8 in auto bool mozilla::MethodDispatcher<mozilla::WebGLMethodDispatcher, 106ul, void (mozilla::HostWebGLContext::*)(unsigned long, mozilla::layers::TextureType, mozilla::webgl::SwapChainOptions const&) const, &mozilla::HostWebGLContext::CopyToSwapChain(unsigned long, mozilla::layers::TextureType, mozilla::webgl::SwapChainOptions const&) const>::DispatchCommand<mozilla::HostWebGLContext>(mozilla::HostWebGLContext&, unsigned long, mozilla::webgl::RangeConsumerView&)::'lambda'(auto&...)::operator()<unsigned long, mozilla::layers::TextureType, mozilla::webgl::SwapChainOptions>(auto&...) const /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:253:13
    #13 0x7f803e28cfda in __invoke_impl<bool, (lambda at /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:245:11), unsigned long &, mozilla::layers::TextureType &, mozilla::webgl::SwapChainOptions &> /builds/worker/fetches/sysroot-x86_64-linux-gnu/usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/invoke.h:60:14
    #14 0x7f803e28cfda in __invoke<(lambda at /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:245:11), unsigned long &, mozilla::layers::TextureType &, mozilla::webgl::SwapChainOptions &> /builds/worker/fetches/sysroot-x86_64-linux-gnu/usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/invoke.h:95:14
    #15 0x7f803e28cfda in __apply_impl<(lambda at /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:245:11), std::tuple<unsigned long, mozilla::layers::TextureType, mozilla::webgl::SwapChainOptions> &, 0UL, 1UL, 2UL> /builds/worker/fetches/sysroot-x86_64-linux-gnu/usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/tuple:1662:14
    #16 0x7f803e28cfda in apply<(lambda at /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:245:11), std::tuple<unsigned long, mozilla::layers::TextureType, mozilla::webgl::SwapChainOptions> &> /builds/worker/fetches/sysroot-x86_64-linux-gnu/usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/tuple:1671:14
    #17 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:244:14
    #18 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #19 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #20 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #21 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #22 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #23 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #24 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #25 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #26 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #27 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #28 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #29 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #30 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #31 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #32 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #33 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #34 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #35 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #36 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #37 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #38 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #39 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #40 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #41 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #42 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #43 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #44 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #45 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #46 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #47 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #48 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #49 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #50 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #51 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #52 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #53 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #54 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #55 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #56 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #57 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #58 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #59 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #60 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #61 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #62 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #63 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #64 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #65 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #66 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #67 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #68 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #69 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #70 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #71 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #72 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #73 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #74 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #75 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #76 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #77 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #78 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #79 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #80 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #81 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #82 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #83 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #84 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #85 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #86 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #87 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #88 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #89 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #90 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #91 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #92 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #93 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #94 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #95 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #96 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #97 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #98 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #99 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #100 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #101 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #102 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #103 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #104 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #105 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #106 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #107 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #108 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #109 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #110 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #111 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #112 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #113 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #114 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #115 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #116 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #117 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #118 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #119 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #120 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #121 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #122 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #123 0x7f803e28cfda in DispatchCommand<mozilla::HostWebGLContext> /builds/worker/checkouts/gecko/dom/canvas/WebGLCommandQueue.h:258:12
    #124 0x7f803e28cfda in mozilla::dom::WebGLParent::RecvDispatchCommands(mozilla::ipc::BigBuffer&&, unsigned long) /builds/worker/checkouts/gecko/dom/canvas/WebGLParent.cpp:62:21
    #125 0x7f803e3d358f in mozilla::dom::PWebGLParent::OnMessageReceived(IPC::Message const&) /builds/worker/workspace/obj-build/ipc/ipdl/PWebGLParent.cpp:244:79
    #126 0x7f803b6afb4f in mozilla::gfx::PCanvasManagerParent::OnMessageReceived(IPC::Message const&) /builds/worker/workspace/obj-build/ipc/ipdl/PCanvasManagerParent.cpp:214:32
    #127 0x7f803a3b9cc9 in mozilla::ipc::MessageChannel::DispatchAsyncMessage(mozilla::ipc::ActorLifecycleProxy*, IPC::Message const&) /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:1800:25
    #128 0x7f803a3b6e1d in mozilla::ipc::MessageChannel::DispatchMessage(mozilla::ipc::ActorLifecycleProxy*, mozilla::UniquePtr<IPC::Message, mozilla::DefaultDelete<IPC::Message>>) /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:1725:9
    #129 0x7f803a3b79ee in mozilla::ipc::MessageChannel::RunMessage(mozilla::ipc::ActorLifecycleProxy*, mozilla::ipc::MessageChannel::MessageTask&) /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:1525:3
    #130 0x7f803a3b8c1e in mozilla::ipc::MessageChannel::MessageTask::Run() /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:1623:14
    #131 0x7f8038c3632b in nsThread::ProcessNextEvent(bool, bool*) /builds/worker/checkouts/gecko/xpcom/threads/nsThread.cpp:1191:16
    #132 0x7f8038c3fe04 in NS_ProcessNextEvent(nsIThread*, bool) /builds/worker/checkouts/gecko/xpcom/threads/nsThreadUtils.cpp:477:10
    #133 0x7f803a3c3160 in mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*) /builds/worker/checkouts/gecko/ipc/glue/MessagePump.cpp:330:5
    #134 0x7f803a240877 in RunInternal /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:381:10
    #135 0x7f803a240877 in RunHandler /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:374:3
    #136 0x7f803a240877 in MessageLoop::Run() /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:356:3
    #137 0x7f8038c2de05 in nsThread::ThreadFunc(void*) /builds/worker/checkouts/gecko/xpcom/threads/nsThread.cpp:383:10
    #138 0x7f805adeb628 in _pt_root /builds/worker/checkouts/gecko/nsprpub/pr/src/pthreads/ptthread.c:201:5
    #139 0x7f805b56fb42 in start_thread nptl/pthread_create.c:442:8
    #140 0x7f805b6019ff  misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Flags: in-testsuite?

The severity field is not set for this bug.
:jgilbert, could you have a look please?

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Flags: needinfo?(jgilbert)
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