Suspected CLs	Git blame below is NOT necessarily who introduced the crash nor the owner for it. Please check the code before assigning to anyone.(No CL in the regression range changed the crashing files.)

Author: Dan Sinclair
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/764ec513eecbebd12781bcc96ce81ed5e736ee92
Time: Mon Mar 14 13:35:12 2016 -0400
The CL last changed line 115 of file JBig2_HuffmanTable.cpp, which is stack frame 0.

Author: Dan Sinclair
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/764ec513eecbebd12781bcc96ce81ed5e736ee92
Time: Mon Mar 14 13:35:12 2016 -0400
The CL last changed line 97 of file JBig2_HuffmanTable.cpp, which is stack frame 1.

Author: Dan Sinclair
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/764ec513eecbebd12781bcc96ce81ed5e736ee92
Time: Mon Mar 14 13:35:12 2016 -0400
The CL last changed line 26 of file JBig2_HuffmanTable.cpp, which is stack frame 2.

Author: Dan Sinclair
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/764ec513eecbebd12781bcc96ce81ed5e736ee92
Time: Mon Mar 14 13:35:12 2016 -0400
The CL last changed line 1234 of file JBig2_Context.cpp, which is stack frame 3.

Author: Dan Sinclair
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/764ec513eecbebd12781bcc96ce81ed5e736ee92
Time: Mon Mar 14 13:35:12 2016 -0400
The CL last changed line 330 of file JBig2_Context.cpp, which is stack frame 4.

Author: Dan Sinclair
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/764ec513eecbebd12781bcc96ce81ed5e736ee92
Time: Mon Mar 14 13:35:12 2016 -0400
The CL last changed line 86 of file JBig2_Context.cpp, which is stack frame 5.

Author: Dan Sinclair
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/764ec513eecbebd12781bcc96ce81ed5e736ee92
Time: Mon Mar 14 13:35:12 2016 -0400
The CL last changed line 189 of file JBig2_Context.cpp, which is stack frame 6.

Suspected Project: chromium-pdfium
===================================================================================

Assigning to Dan@ as the owner of chromium//src/third_party/pdfium/OWNERS for help in further investigation of this.

Thanks in advance!

Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

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ClusterFuzz has detected this issue as fixed in range 459701:459705.

Detailed report: https://clusterfuzz.com/testcase?key=6591373145014272

Fuzzer: libfuzzer_pdf_codec_jbig2_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  CJBig2_HuffmanTable::InitCodes
  CJBig2_HuffmanTable::ParseFromCodedBuffer
  CJBig2_HuffmanTable::CJBig2_HuffmanTable
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=421422:421461
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=459701:459705

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv96dcQRcqX6axIUCb9gfg86Y3WVayElQv6aFRsdidRKr2LdacddcTh8KRJrqpWkhgfEjhlWGSjVm5mKQnwYGWxtF_5RxjaWxYf1644XQtquVDx7kTHZbir7uTlsULiFncB5hTDxM3u7qxqlEjnSKHVEENAFpjCejH_BzTB_OXa68QKRQ7c-uVRrETtySEciX0zUnFDK4CmTb5-8yigiX6gLvRHH8YQRFcRnvpfQS-QPsHsaYqaa2ryHCZDc2WQhVUIxuRos1m5-MFQWyJo2PD_vKt5eWZyLx9GRdAHr8Ok3M2x6KkrvFdM-LS36BTGLx48uTpkya3KJw0KmayjAXfPKhdgBM_lU5iQN4qgsLDRv0tHvnlSs?testcase_id=6591373145014272


Additional requirements: Requires Gestures

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 6591373145014272 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

Doesn't repro for me locally. Marking as fixed.