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Issue metadata

Status: Duplicate
Merged: issue 771858
Owner: ----
Closed: Oct 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in CPDF_Dictionary::GetObjectFor

Project Member Reported by ClusterFuzz, Oct 5 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6325980447899648

Fuzzer: libFuzzer_pdfium_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000020
Crash State:
  CPDF_Dictionary::GetObjectFor
  CPDF_Dictionary::GetIntegerFor
  CPDF_DataAvail::CheckLinearizedData
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=506448:506530

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6325980447899648

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 5 2017

Components: Internals>Plugins>PDF
Labels: Test-Predator-AutoComponents
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Cc: kkaluri@chromium.org
Labels: M-63 Test-Predator-Correct-CLs
Mergedinto: 771858
Status: Duplicate (was: Untriaged)
This issue looks similar to  Issue 771858 , hence merging into it.
Please undo it it is not the case.

Thank You...
Project Member

Comment 3 by ClusterFuzz, Oct 7 2017

ClusterFuzz has detected this issue as fixed in range 506747:506787.

Detailed report: https://clusterfuzz.com/testcase?key=6325980447899648

Fuzzer: libFuzzer_pdfium_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000020
Crash State:
  CPDF_Dictionary::GetObjectFor
  CPDF_Dictionary::GetIntegerFor
  CPDF_DataAvail::CheckLinearizedData
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=506448:506530
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=506747:506787

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6325980447899648

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.
Labels: -Test-Predator-AutoComponents Test-Predator-Auto-Components

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