1543094 - AddressSanitizer: SEGV /builds/worker/workspace/build/src/xpcom/base/nsDebugImpl.cpp:604:3 in NS_ABORT_OOM(unsigned long)

Status: RESOLVED WORKSFORME

(Core :: Layout: Tables, defect, P5)

Description

[Jason Kratzer [:jkratzer]]

Attachment: testcase.html

Testcase found while fuzzing mozilla-central rev 98b223de0543. Testcase takes 30-60 seconds to trigger.

==29143==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000001 (pc 0x7f736fae25cf bp 0x7fffd3a37660 sp 0x7fffd3a37660 T0)
==29143==The signal is caused by a WRITE memory access.
==29143==Hint: address points to the zero page.
    #0 0x7f736fae25ce in NS_ABORT_OOM(unsigned long) /builds/worker/workspace/build/src/xpcom/base/nsDebugImpl.cpp:604:3
    #1 0x7f736fbba46f in PLDHashTable::Add(void const*) /builds/worker/workspace/build/src/xpcom/ds/PLDHashTable.cpp
    #2 0x7f737b4cb3c0 in PutEntry /builds/worker/workspace/build/src/obj-firefox/dist/include/nsTHashtable.h:152:43
    #3 0x7f737b4cb3c0 in PutEntry /builds/worker/workspace/build/src/obj-firefox/dist/include/nsTHashtable.h:531
    #4 0x7f737b4cb3c0 in RecordAlloc /builds/worker/workspace/build/src/layout/base/nsIPresShell.h:1624
    #5 0x7f737b4cb3c0 in AllocateByObjectID /builds/worker/workspace/build/src/layout/base/nsIPresShell.h:242
    #6 0x7f737b4cb3c0 in nsCellMap::AllocCellData(nsTableCellFrame*) /builds/worker/workspace/build/src/layout/tables/nsCellMap.cpp:2398
    #7 0x7f737b4bda69 in nsCellMap::AppendCell(nsTableCellMap&, nsTableCellFrame*, int, bool, int, mozilla::TableArea&, int*) /builds/worker/workspace/build/src/layout/tables/nsCellMap.cpp:1392:22
    #8 0x7f737b4c8d6e in nsCellMap::ExpandWithRows(nsTableCellMap&, nsTArray<nsTableRowFrame*>&, int, int, mozilla::TableArea&) /builds/worker/workspace/build/src/layout/tables/nsCellMap.cpp:1587:9
    #9 0x7f737b4bb4dc in nsTableCellMap::InsertRows(nsTableRowGroupFrame*, nsTArray<nsTableRowFrame*>&, int, bool, mozilla::TableArea&) /builds/worker/workspace/build/src/layout/tables/nsCellMap.cpp:427:16
    #10 0x7f737b4f6859 in nsTableFrame::InsertRows(nsTableRowGroupFrame*, nsTArray<nsTableRowFrame*>&, int, bool) /builds/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:868:14
    #11 0x7f737b4f1b45 in nsTableFrame::InsertRowGroups(nsFrameList::Slice const&) /builds/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:1092:13
    #12 0x7f737b4f0492 in nsTableFrame::SetInitialChildList(mozilla::layout::FrameChildListID, nsFrameList&) /builds/worker/workspace/build/src/layout/tables/nsTableFrame.cpp:347:5
    #13 0x7f737adfba13 in nsCSSFrameConstructor::ConstructTable(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItem&, nsContainerFrame*, nsStyleDisplay const*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:1971:15
    #14 0x7f737ae16fa9 in nsCSSFrameConstructor::ConstructFrameFromItemInternal(nsCSSFrameConstructor::FrameConstructionItem&, nsFrameConstructorState&, nsContainerFrame*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:3585:16
    #15 0x7f737ae23c5a in nsCSSFrameConstructor::ConstructFramesFromItem(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItemList::Iterator&, nsContainerFrame*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:5669:3
    #16 0x7f737adfc52a in nsCSSFrameConstructor::ConstructFramesFromItemList(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItemList&, nsContainerFrame*, bool, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:9562:5
    #17 0x7f737ae1cb1a in nsCSSFrameConstructor::ConstructInline(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItem&, nsContainerFrame*, nsStyleDisplay const*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:11041:3
    #18 0x7f737ae16fa9 in nsCSSFrameConstructor::ConstructFrameFromItemInternal(nsCSSFrameConstructor::FrameConstructionItem&, nsFrameConstructorState&, nsContainerFrame*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:3585:16
    #19 0x7f737ae23c5a in nsCSSFrameConstructor::ConstructFramesFromItem(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItemList::Iterator&, nsContainerFrame*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:5669:3
    #20 0x7f737adfc52a in nsCSSFrameConstructor::ConstructFramesFromItemList(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItemList&, nsContainerFrame*, bool, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:9562:5
    #21 0x7f737ae1cb1a in nsCSSFrameConstructor::ConstructInline(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItem&, nsContainerFrame*, nsStyleDisplay const*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:11041:3
    #22 0x7f737ae16fa9 in nsCSSFrameConstructor::ConstructFrameFromItemInternal(nsCSSFrameConstructor::FrameConstructionItem&, nsFrameConstructorState&, nsContainerFrame*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:3585:16
    #23 0x7f737ae23c5a in nsCSSFrameConstructor::ConstructFramesFromItem(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItemList::Iterator&, nsContainerFrame*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:5669:3
    #24 0x7f737adfc52a in nsCSSFrameConstructor::ConstructFramesFromItemList(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItemList&, nsContainerFrame*, bool, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:9562:5
    #25 0x7f737ae1cb1a in nsCSSFrameConstructor::ConstructInline(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItem&, nsContainerFrame*, nsStyleDisplay const*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:11041:3
    #26 0x7f737ae16fa9 in nsCSSFrameConstructor::ConstructFrameFromItemInternal(nsCSSFrameConstructor::FrameConstructionItem&, nsFrameConstructorState&, nsContainerFrame*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:3585:16
    #27 0x7f737ae23c5a in nsCSSFrameConstructor::ConstructFramesFromItem(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItemList::Iterator&, nsContainerFrame*, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:5669:3
    #28 0x7f737adfc52a in nsCSSFrameConstructor::ConstructFramesFromItemList(nsFrameConstructorState&, nsCSSFrameConstructor::FrameConstructionItemList&, nsContainerFrame*, bool, nsFrameList&) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:9562:5
    #29 0x7f737ae35040 in nsCSSFrameConstructor::ContentAppended(nsIContent*, nsCSSFrameConstructor::InsertionKind) /builds/worker/workspace/build/src/layout/base/nsCSSFrameConstructor.cpp:6830:3
    #30 0x7f737ada30d7 in mozilla::RestyleManager::ProcessRestyledFrames(nsStyleChangeList&) /builds/worker/workspace/build/src/layout/base/RestyleManager.cpp:1448:27
    #31 0x7f737adb4ba3 in mozilla::RestyleManager::DoProcessPendingRestyles(mozilla::ServoTraversalFlags) /builds/worker/workspace/build/src/layout/base/RestyleManager.cpp:3110:9
    #32 0x7f737ad48dbe in ProcessPendingRestyles /builds/worker/workspace/build/src/layout/base/RestyleManager.cpp:3182:3
    #33 0x7f737ad48dbe in mozilla::PresShell::DoFlushPendingNotifications(mozilla::ChangesToFlush) /builds/worker/workspace/build/src/layout/base/PresShell.cpp:4110
    #34 0x7f737422bb5f in FlushPendingNotifications /builds/worker/workspace/build/src/layout/base/nsIPresShell.h:571:5
    #35 0x7f737422bb5f in mozilla::dom::Document::FlushPendingNotifications(mozilla::ChangesToFlush) /builds/worker/workspace/build/src/dom/base/Document.cpp:7190
    #36 0x7f737295ddbe in nsDocLoader::DocLoaderIsEmpty(bool) /builds/worker/workspace/build/src/uriloader/base/nsDocLoader.cpp:659:14
    #37 0x7f7372961f65 in nsDocLoader::OnStopRequest(nsIRequest*, nsresult) /builds/worker/workspace/build/src/uriloader/base/nsDocLoader.cpp:598:5
    #38 0x7f7372963844 in non-virtual thunk to nsDocLoader::OnStopRequest(nsIRequest*, nsresult) /builds/worker/workspace/build/src/uriloader/base/nsDocLoader.cpp
    #39 0x7f73700306f2 in mozilla::net::nsLoadGroup::RemoveRequest(nsIRequest*, nsISupports*, nsresult) /builds/worker/workspace/build/src/netwerk/base/nsLoadGroup.cpp:568:22
    #40 0x7f737420975a in DoUnblockOnload /builds/worker/workspace/build/src/dom/base/Document.cpp:7831:18
    #41 0x7f737420975a in mozilla::dom::Document::UnblockOnload(bool) /builds/worker/workspace/build/src/dom/base/Document.cpp:7763
    #42 0x7f73742081bf in mozilla::dom::Document::DispatchContentLoadedEvents() /builds/worker/workspace/build/src/dom/base/Document.cpp:4891:3
    #43 0x7f737430ceeb in applyImpl<mozilla::dom::Document, void (mozilla::dom::Document::*)()> /builds/worker/workspace/build/src/obj-firefox/dist/include/nsThreadUtils.h:1122:12
    #44 0x7f737430ceeb in apply<mozilla::dom::Document, void (mozilla::dom::Document::*)()> /builds/worker/workspace/build/src/obj-firefox/dist/include/nsThreadUtils.h:1128
    #45 0x7f737430ceeb in mozilla::detail::RunnableMethodImpl<mozilla::dom::Document*, void (mozilla::dom::Document::*)(), true, (mozilla::RunnableKind)0>::Run() /builds/worker/workspace/build/src/obj-firefox/dist/include/nsThreadUtils.h:1174
    #46 0x7f736fd47915 in mozilla::SchedulerGroup::Runnable::Run() /builds/worker/workspace/build/src/xpcom/threads/SchedulerGroup.cpp:295:32
    #47 0x7f736fd87956 in nsThread::ProcessNextEvent(bool, bool*) /builds/worker/workspace/build/src/xpcom/threads/nsThread.cpp:1180:14
    #48 0x7f736fd8f61d in NS_ProcessNextEvent(nsIThread*, bool) /builds/worker/workspace/build/src/xpcom/threads/nsThreadUtils.cpp:486:10
    #49 0x7f73710f255f in mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) /builds/worker/workspace/build/src/ipc/glue/MessagePump.cpp:88:21
    #50 0x7f7370fc78de in RunInternal /builds/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:315:10
    #51 0x7f7370fc78de in RunHandler /builds/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:308
    #52 0x7f7370fc78de in MessageLoop::Run() /builds/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:290
    #53 0x7f737a5beea3 in nsBaseAppShell::Run() /builds/worker/workspace/build/src/widget/nsBaseAppShell.cpp:137:27
    #54 0x7f737eb8404e in XRE_RunAppShell() /builds/worker/workspace/build/src/toolkit/xre/nsEmbedFunctions.cpp:919:20
    #55 0x7f7370fc78de in RunInternal /builds/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:315:10
    #56 0x7f7370fc78de in RunHandler /builds/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:308
    #57 0x7f7370fc78de in MessageLoop::Run() /builds/worker/workspace/build/src/ipc/chromium/src/base/message_loop.cc:290
    #58 0x7f737eb831dc in XRE_InitChildProcess(int, char**, XREChildData const*) /builds/worker/workspace/build/src/toolkit/xre/nsEmbedFunctions.cpp:757:34
    #59 0x55ba28259834 in content_process_main /builds/worker/workspace/build/src/browser/app/../../ipc/contentproc/plugin-container.cpp:56:28
    #60 0x55ba28259834 in main /builds/worker/workspace/build/src/browser/app/nsBrowserApp.cpp:263
    #61 0x7f7393a1fb96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310

Comment 1

[Mats Palmgren (inactive)]

We abort because we exceed the maximum number of entries
we can keep in a hashtable. RecordAlloc is a diagnostic
feature though (MOZ_DIAGNOSTIC_ASSERT_ENABLED), which
is only enabled in Nightly/Beta builds (and true DEBUG builds).
https://searchfox.org/mozilla-central/rev/dd7e27f4a805e4115d0dbee70e1220b23b23c567/layout/base/nsIPresShell.h#1621-1626
https://searchfox.org/mozilla-central/rev/dd7e27f4a805e4115d0dbee70e1220b23b23c567/mfbt/Assertions.h#479,483
So this particular abort shouldn't affect release builds.

The testcase has:

        o4.setAttribute('colspan', 1000)
        o4.rowSpan = 100663045

which may or may not cause a regular OOM in a release-
build for some users, but I think that's normal.

So, as far as I can tell, this is working as intended.

Comment 2

[Jason Kratzer [:jkratzer]]

This bug is triggered frequently enough that it has started to affect overall fuzzing performance. Would it be possible to disable this assert in --enable-fuzzing builds? If not, I will have to disable testing of [row|column]span attributes.

Comment 3

[Mats Palmgren (inactive)]

I don't think that's possible. I think this assert needs to be fatal or you'll get very weird crashes instead. Maybe we can just limit the colspan/rowspan values to something reasonable in the fuzzer, like say max 1000?

Comment 4

[Christian Holler (:decoder)]

The proper way to move forward here is to annotate this assertion with [unhandlable oom] so the fuzzing automation can ignore it. We can do this for fuzzing builds only if it is otherwise a problem. The JS engine already does this for all OOM-related forced crashes.

Comment 5

[Andrei Purice]

Hey Jason,
Can you still reproduce this issue or should we close it?

Comment 6

[Jason Kratzer [:jkratzer]]

(In reply to Andrei Purice from comment #5)

Hey Jason,
Can you still reproduce this issue or should we close it?

Andrei, this issue still reproduces on mozilla-central rev 152fdda295bb (built with --enable-address-sanitzer --enable-fuzzing).

Testcase can be reproduced using the following commands:

$ pip install fuzzfetch grizzly-framework
$ python -m fuzzfetch --build 152fdda295bb --asan --fuzzing -n build
$ python -m grizzly.replay ./build/firefox ./testcase.html

Comment 7

[Tyson Smith [:tsmith]]

The attached test case no longer reproduces the issue and the fuzzers are no longer reporting it.