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Issue 676917 link

Starred by 2 users
Status: Duplicate
Merged: issue 676914
Owner: ----
Closed: Dec 2016
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Undefined-shift in T_UConverter_toUnicode_UTF32_LE

Project Member Reported by ClusterFuzz, Dec 24 2016 
Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5586083419258880

Fuzzer: libfuzzer_libxml_xml_read_memory_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  T_UConverter_toUnicode_UTF32_LE
  _toUnicodeWithCallback
  ucnv_convertEx_56
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=395640:395746

Minimized Testcase (0.46 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94sdn947qJ8k4ZQq3531Q46V4mEQH7cei-F-6y4PJskQTcFzRm1ZSgpBkqeEkYeygLa6lrr8kbDqKN4oH8wLEwAEwS9KycubeEi-YXGA_uKMxX7SSdJWK_a7PmNJOQwXSz7WWZKTcR4UMWwvCDSGhnG_rswqA?testcase_id=5586083419258880

Issue filed automatically.

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

Comment 1 by msrchandra@chromium.org, Dec 26 2016

Mergedinto: 676914
Status: Duplicate (was: Untriaged)
This issue looks similar to Bug Id: 676914. So merging the issue into same.
Please unmerge if anyone feels else.
Thank You.
Project Member

Comment 2 by ClusterFuzz, May 15 2017 

ClusterFuzz has detected this issue as fixed in range 471619:471628.

Detailed report: https://clusterfuzz.com/testcase?key=5586083419258880

Fuzzer: libfuzzer_libxml_xml_read_memory_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  T_UConverter_toUnicode_UTF32_LE
  _toUnicodeWithCallback
  ucnv_convertEx_56
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=395640:395746
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=471619:471628

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5586083419258880


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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