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Issue metadata

Status: Verified
Owner: ----
Closed: Aug 2017
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Stack-overflow in CXFA_FMParser::ParseUnaryExpression

Project Member Reported by ClusterFuzz, Aug 19 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6398093926072320

Fuzzer: libFuzzer_pdf_fm2js_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff095a1fb8
Crash State:
  CXFA_FMParser::ParseUnaryExpression
  CXFA_FMParser::ParseMultiplicativeExpression
  CXFA_FMParser::ParseAddtiveExpression
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=434721:434825

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6398093926072320

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Aug 24 2017

ClusterFuzz has detected this issue as fixed in range 496738:496804.

Detailed report: https://clusterfuzz.com/testcase?key=6398093926072320

Fuzzer: libFuzzer_pdf_fm2js_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff095a1fb8
Crash State:
  CXFA_FMParser::ParseUnaryExpression
  CXFA_FMParser::ParseMultiplicativeExpression
  CXFA_FMParser::ParseAddtiveExpression
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=434721:434825
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=496738:496804

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6398093926072320

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.
Project Member

Comment 2 by ClusterFuzz, Aug 24 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6398093926072320 is verified as fixed, so closing issue as verified.

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

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