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Issue metadata

Status: Duplicate
Merged: issue 641551
Owner:
Closed: Jan 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Undefined-shift in CPDF_PSEngine::DoOperator

Project Member Reported by ClusterFuzz, Jan 18 2017

Issue description

Components: Internals>Plugins>PDF
Labels: Test-Predator-Wrong M-56
Owner: tsepez@chromium.org
Status: Assigned (was: Untriaged)
As per existing  issue 641551 , assigning to tsepez@. could you please take a look?
Thank you.

Comment 2 by tsepez@chromium.org, Jan 20 2017

Mergedinto: 641551
Status: Duplicate (was: Assigned)
Fix to this is blocked on https://codereview.chromium.org/2640143003/, at which point it becomes a one-liner (or two).
Project Member

Comment 3 by ClusterFuzz, Jan 25 2017

ClusterFuzz has detected this issue as fixed in range 445740:445846.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6089773266763776

Fuzzer: libfuzzer_pdf_psengine_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  CPDF_PSEngine::DoOperator
  CPDF_PSProc::Execute
  CPDF_PSProc::Execute
  
Sanitizer: undefined (UBSAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=413192:413325
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=445740:445846

Minimized Testcase (6.08 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94H3mN5lzjbK2Rw4gUs561DiPpZ0-mjS0ppuqZGChnC9PmXP7VDD0ckz0bmIH3rBMvpuFDyV0TzseJuus4ExZjaAPAgj5tE8P4FLxXG86sZCv8h1LHkotfHkz-wKCFhm0yfDDkwNGYLYlfHXeIUkXJVzB1Tga6Rta8t6UWtqCuEln06TkXvTVnfDF0c0WvAq_STQTN8nrnk-95YbC06Tc9jtrhSiAfVhoZyyt4rAFH-eNoPNry3iMxucYe56AIqRfKhx0-9Q-fqUfd7Nrm-J8bqVFcERKfRiRABBbZRak8VTyh-svctvd1iyRHYFHEbTWZuzQsZ6kMGg7uSbrAuytvXgLKyoXDQ6zue5ctnEspcWP9O8lY?testcase_id=6089773266763776

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.

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