1456007 - LSan: Direct leak from OrInsert /builds/worker/workspace/build/src/xpcom/ds/nsBaseHashtable.h:308

Status: RESOLVED INVALID

(Core :: XPCOM, defect)

Description

[Tyson Smith [:tsmith]]

Attachment: testcase.html

Found with m-c:
BuildID=20180420091115
SourceStamp=cc0d7de218cb0c260c8ba0cf6637845ad2222f49

To reproduce open testcase and close it once it has loaded.

Direct leak of 14336 byte(s) in 448 object(s) allocated from:
    #0 0x4c1c93 in malloc moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:88:3
    #1 0x4f26fd in moz_xmalloc src/memory/mozalloc/mozalloc.cpp:70:17
    #2 0x7f663a9d3dec in operator new src/obj-firefox/dist/include/mozilla/mozalloc.h:156:12
    #3 0x7f663a9d3dec in operator() src/xpcom/components/nsComponentManager.cpp:489
    #4 0x7f663a9d3dec in OrInsert<(lambda at src/xpcom/components/nsComponentManager.cpp:489:20)> src/xpcom/ds/nsBaseHashtable.h:308
    #5 0x7f663a9d3dec in nsComponentManagerImpl::RegisterCIDEntryLocked(mozilla::Module::CIDEntry const*, nsComponentManagerImpl::KnownModule*) src/xpcom/components/nsComponentManager.cpp:489
    #6 0x7f663a9d302c in nsComponentManagerImpl::RegisterModule(mozilla::Module const*, mozilla::FileLocation*) src/xpcom/components/nsComponentManager.cpp:437:9
    #7 0x7f663a9d1529 in nsComponentManagerImpl::Init() src/xpcom/components/nsComponentManager.cpp:305:5
    #8 0x7f663aa7fe9e in NS_InitXPCOM2 src/xpcom/build/XPCOMInit.cpp:643:51
    #9 0x7f66465d36a3 in XRE_InitEmbedding2(nsIFile*, nsIFile*, nsIDirectoryServiceProvider*) src/toolkit/xre/nsEmbedFunctions.cpp:190:8
    #10 0x7f663b924cae in mozilla::ipc::ScopedXREEmbed::Start() src/ipc/glue/ScopedXREEmbed.cpp
    #11 0x7f6641bea878 in mozilla::dom::ContentProcess::Init(int, char**) src/dom/ipc/ContentProcess.cpp:223:13
    #12 0x7f66465d427f in XRE_InitChildProcess(int, char**, XREChildData const*) src/toolkit/xre/nsEmbedFunctions.cpp:695:21
    #13 0x4f1875 in content_process_main src/browser/app/../../ipc/contentproc/plugin-container.cpp:50:30
    #14 0x4f1875 in main src/browser/app/nsBrowserApp.cpp:280
    #15 0x7f665ab2982f in __libc_start_main /build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:291

Comment 1

[Tyson Smith [:tsmith]]

Wrong stack. Let me just start over.

Comment 2

[Andrew McCreight [:mccr8]]

Yeah, the component manager stuff is intentionally leaked. That's supposed to be covered by the LSan white list.