1645172 - Assertion failure: mStart < mEnd, at /builds/worker/checkouts/gecko/layout/generic/nsGridContainerFrame.cpp:6667

Status: RESOLVED WORKSFORME

(Core :: Layout: Grid, defect)

Description

[Jason Kratzer [:jkratzer]]

Attachment: testcase.html

Testcase found while fuzzing mozilla-central rev 10ad7868f3ca (built with --enable-debug).

Assertion failure: mStart < mEnd, at /builds/worker/checkouts/gecko/layout/generic/nsGridContainerFrame.cpp:6667

rax = 0x00007f39c1b2b1fe   rdx = 0x0000000000000000
rcx = 0x00005614e2958a58   rbx = 0x00005614e3476560
rsi = 0x00007f39d2bc88b0   rdi = 0x00007f39d2bc7680
rbp = 0x00007ffc3edd6af0   rsp = 0x00007ffc3edd6af0
r8 = 0x00007f39d2bc88b0    r9 = 0x00007f39d3d2e780
r10 = 0x0000000000000002   r11 = 0x0000000000000000
r12 = 0x0000000000000000   r13 = 0x00005614e32e6b50
r14 = 0x00007ffc3edd7028   r15 = 0x00005614e32e4578
rip = 0x00007f39bc49d98c
OS|Linux|0.0.0 Linux 5.3.0-51-generic #44~18.04.2-Ubuntu SMP Thu Apr 23 14:27:18 UTC 2020 x86_64
CPU|amd64|family 6 model 94 stepping 3|8
GPU|||
Crash|SIGSEGV|0x0|0
0|0|libxul.so|nsGridContainerFrame::LineRange::ToLength(nsTArray<nsGridContainerFrame::TrackSize> const&) const|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGridContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|6667|0x29
0|1|libxul.so|CopyUsedTrackSizes(nsTArray<nsGridContainerFrame::TrackSize>&, nsGridContainerFrame const*, nsGridContainerFrame::UsedTrackSizes const*, nsGridContainerFrame const*, nsGridContainerFrame::Subgrid const*, mozilla::LogicalAxis)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGridContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|3451|0x14
0|2|libxul.so|nsGridContainerFrame::GridReflowInput::CalculateTrackSizesForAxis(mozilla::LogicalAxis, nsGridContainerFrame::Grid const&, int, nsGridContainerFrame::SizingConstraint)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGridContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|3593|0x20
0|3|libxul.so|nsGridContainerFrame::GridReflowInput::CalculateTrackSizes(nsGridContainerFrame::Grid const&, mozilla::LogicalSize const&, nsGridContainerFrame::SizingConstraint)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGridContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|3648|0x49
0|4|libxul.so|nsGridContainerFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGridContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|8467|0xa
0|5|libxul.so|nsAbsoluteContainingBlock::ReflowAbsoluteFrame(nsIFrame*, nsPresContext*, mozilla::ReflowInput const&, nsRect const&, nsAbsoluteContainingBlock::AbsPosReflowFlags, nsIFrame*, nsReflowStatus&, nsOverflowAreas*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsAbsoluteContainingBlock.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|760|0x1d
0|6|libxul.so|nsAbsoluteContainingBlock::Reflow(nsContainerFrame*, nsPresContext*, mozilla::ReflowInput const&, nsReflowStatus&, nsRect const&, nsAbsoluteContainingBlock::AbsPosReflowFlags, nsOverflowAreas*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsAbsoluteContainingBlock.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|212|0x3b
0|7|libxul.so|nsGridContainerFrame::ReflowChildren(nsGridContainerFrame::GridReflowInput&, mozilla::LogicalRect const&, nsSize const&, mozilla::ReflowOutput&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGridContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|8388|0x1d
0|8|libxul.so|nsGridContainerFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGridContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|8562|0x1f
0|9|libxul.so|nsContainerFrame::ReflowChild(nsIFrame*, nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, mozilla::WritingMode const&, mozilla::LogicalPoint const&, nsSize const&, nsIFrame::ReflowChildFlags, nsReflowStatus&, nsOverflowContinuationTracker*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|1074|0x1a
0|10|libxul.so|nsCanvasFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsCanvasFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|750|0x22
0|11|libxul.so|nsContainerFrame::ReflowChild(nsIFrame*, nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, mozilla::WritingMode const&, mozilla::LogicalPoint const&, nsSize const&, nsIFrame::ReflowChildFlags, nsReflowStatus&, nsOverflowContinuationTracker*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|1074|0x1a
0|12|libxul.so|nsHTMLScrollFrame::ReflowScrolledFrame(mozilla::ScrollReflowInput*, bool, bool, mozilla::ReflowOutput*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGfxScrollFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|661|0x3a
0|13|libxul.so|nsHTMLScrollFrame::ReflowContents(mozilla::ScrollReflowInput*, mozilla::ReflowOutput const&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGfxScrollFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|775|0x15
0|14|libxul.so|nsHTMLScrollFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGfxScrollFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|1161|0x15
0|15|libxul.so|nsContainerFrame::ReflowChild(nsIFrame*, nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, int, int, nsIFrame::ReflowChildFlags, nsReflowStatus&, nsOverflowContinuationTracker*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsContainerFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|1114|0x18
0|16|libxul.so|mozilla::ViewportFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/ViewportFrame.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|296|0x2b
0|17|libxul.so|mozilla::PresShell::DoReflow(nsIFrame*, bool, mozilla::OverflowChangedTracker*)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|9576|0x1c
0|18|libxul.so|mozilla::PresShell::ProcessReflowCommands(bool)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|9749|0x12
0|19|libxul.so|mozilla::PresShell::DoFlushPendingNotifications(mozilla::ChangesToFlush)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|4229|0x12
0|20|libxul.so|nsRefreshDriver::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.h:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|1440|0xb
0|21|libxul.so|mozilla::RefreshDriverTimer::TickRefreshDrivers(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp, nsTArray<RefPtr<nsRefreshDriver> >&)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|373|0xb
0|22|libxul.so|mozilla::RefreshDriverTimer::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|367|0x12
0|23|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::TickRefreshDriver(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|737|0x17
0|24|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::NotifyParentProcessVsync()|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|639|0x10
0|25|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::ParentProcessVsyncNotifier::Run()|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|538|0x14
0|26|libxul.so|nsThread::ProcessNextEvent(bool, bool*)|hg:hg.mozilla.org/mozilla-central:xpcom/threads/nsThread.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|1236|0xe
0|27|libxul.so|NS_ProcessNextEvent(nsIThread*, bool)|hg:hg.mozilla.org/mozilla-central:xpcom/threads/nsThreadUtils.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|501|0xc
0|28|libxul.so|mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessagePump.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|87|0x7
0|29|libxul.so|MessageLoop::RunInternal()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|315|0x17
0|30|libxul.so|MessageLoop::Run()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|290|0x8
0|31|libxul.so|nsBaseAppShell::Run()|hg:hg.mozilla.org/mozilla-central:widget/nsBaseAppShell.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|137|0xd
0|32|libxul.so|XRE_RunAppShell()|hg:hg.mozilla.org/mozilla-central:toolkit/xre/nsEmbedFunctions.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|913|0xe
0|33|libxul.so|mozilla::ipc::MessagePumpForChildProcess::Run(base::MessagePump::Delegate*)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessagePump.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|237|0x5
0|34|libxul.so|MessageLoop::RunInternal()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|315|0x17
0|35|libxul.so|MessageLoop::Run()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|290|0x8
0|36|libxul.so|XRE_InitChildProcess(int, char**, XREChildData const*)|hg:hg.mozilla.org/mozilla-central:toolkit/xre/nsEmbedFunctions.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|744|0x5
0|37|firefox-bin|content_process_main(mozilla::Bootstrap*, int, char**)|hg:hg.mozilla.org/mozilla-central:ipc/contentproc/plugin-container.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|56|0x11
0|38|firefox-bin|main|hg:hg.mozilla.org/mozilla-central:browser/app/nsBrowserApp.cpp:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|303|0x20
0|39|libc.so.6||||0x21b97
0|40|firefox-bin|<name omitted>|hg:hg.mozilla.org/mozilla-central:mfbt/UniquePtr.h:10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd|253|0x17

Comment 1

[Jason Kratzer [:jkratzer]]

Bugmon Analysis:
Verified bug as reproducible on mozilla-central 20200611093454-10ad7868f3ca.
Failed to bisect testcase (Start build crashes!):
> Start: 4a63f0a3a1f26e2a377ffbd477ba050e16577445 (20190613035031)
> End: 10ad7868f3ca27cb90db9bd1d392ff4d7852a0cd (20200611093454)
> BuildFlags: BuildFlags(asan=False, tsan=False, debug=True, fuzzing=False, coverage=False, valgrind=False)

Comment 2

[Bugmon [:jkratzer for issues]]

Bugmon Analysis
Unable to reproduce bug 1645172 using build mozilla-central 20201205093858-7ce95b6cde26. Without a baseline, bugmon is unable to analyze this bug.
Removing bugmon keyword as no further action possible. Please review the bug and re-add the keyword for further analysis.

Comment 3

[Tiaan Louw]

I can't find any assertion running the testcase.