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Issue metadata

Status: Verified
Owner:
Closed: Apr 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug

Blocking:
issue 62400



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Stack-overflow in CFX_XMLAttributeNode::~CFX_XMLAttributeNode

Project Member Reported by ClusterFuzz, Apr 7 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6425344266207232

Fuzzer: libFuzzer_pdf_xml_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff1706bfa8
Crash State:
  CFX_XMLAttributeNode::~CFX_XMLAttributeNode
  CFX_XMLElement::~CFX_XMLElement
  CFX_XMLElement::~CFX_XMLElement
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=548167:548177

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6425344266207232

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Apr 7 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.
Project Member

Comment 2 by ClusterFuzz, Apr 7 2018

Labels: Test-Predator-Auto-Owner
Owner: dsinclair@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://pdfium.googlesource.com/pdfium/+/3faa382d4feb3c272333f20e16106a5bbc472990 (Decrease XML parser buffer size).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Blocking: 62400
Project Member

Comment 4 by ClusterFuzz, Apr 17 2018

ClusterFuzz has detected this issue as fixed in range 551207:551217.

Detailed report: https://clusterfuzz.com/testcase?key=6425344266207232

Fuzzer: libFuzzer_pdf_xml_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff1706bfa8
Crash State:
  CFX_XMLAttributeNode::~CFX_XMLAttributeNode
  CFX_XMLElement::~CFX_XMLElement
  CFX_XMLElement::~CFX_XMLElement
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=548167:548177
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=551207:551217

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6425344266207232

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.
Project Member

Comment 5 by ClusterFuzz, Apr 17 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6425344266207232 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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