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Issue metadata

Status: Duplicate
Merged: issue 811733
Owner:
Closed: Feb 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug

Blocking:
issue 62400



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Null-dereference READ in CCodec_ProgressiveDecoder::BmpDetectImageType

Project Member Reported by ClusterFuzz, Feb 14 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4775682148925440

Fuzzer: libFuzzer_pdf_codec_bmp_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  CCodec_ProgressiveDecoder::BmpDetectImageType
  CCodec_ProgressiveDecoder::LoadImageInfo
  XFACodecFuzzer::Fuzz
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=536273:536275

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4775682148925440

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Feb 14 2018

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

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Blocking: 62400
Owner: rharrison@chromium.org
Status: Assigned (was: Untriaged)
Mergedinto: 811733
Status: Duplicate (was: Assigned)
Project Member

Comment 4 by ClusterFuzz, Feb 15 2018

ClusterFuzz has detected this issue as fixed in range 536816:536853.

Detailed report: https://clusterfuzz.com/testcase?key=4775682148925440

Fuzzer: libFuzzer_pdf_codec_bmp_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  CCodec_ProgressiveDecoder::BmpDetectImageType
  CCodec_ProgressiveDecoder::LoadImageInfo
  XFACodecFuzzer::Fuzz
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=536273:536275
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=536816:536853

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4775682148925440

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.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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