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Issue metadata

Status: Verified
Owner:
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug

Blocked on:
issue 805624

Blocking:
issue 62400



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Stack-overflow in CFX_XMLAttributeNode::~CFX_XMLAttributeNode

Project Member Reported by ClusterFuzz, Jan 6 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5247265529921536

Fuzzer: libFuzzer_pdf_xml_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff42ef4ff8
Crash State:
  CFX_XMLAttributeNode::~CFX_XMLAttributeNode
  CFX_XMLElement::~CFX_XMLElement
  CFX_XMLElement::~CFX_XMLElement
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=465929:466779

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5247265529921536

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jan 6 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, Jan 6 2018

Cc: dsinclair@chromium.org
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

Move fde XML parser to core by dsinclair@chromium.org - https://pdfium.googlesource.com/pdfium/+/0d86ecb08e1b2c204333b1f1f6b0b014e5b2971c

Cleanup the fx_extension code. by dsinclair@chromium.org - https://pdfium.googlesource.com/pdfium/+/cfb1944e245e20fe2ce0e94feebc06526db34fa1

If this is incorrect, please apply the Test-Predator-Wrong-CLs label.
Owner: dsinclair@chromium.org
dsinclair@ Ping! Could you please let us know is there any latest update available on this issue.

Thanks!
Blocking: 62400
Owner: rharrison@chromium.org
This is an XFA issue and is not enabled on any branch of Chrome.
Labels: -Pri-1 Pri-2
Status: Started (was: Untriaged)
This no longer reproduces for me @ HEAD. Given there is significant work going on with the related widget/node code, it is reasonable that this was fixed as part of another CL. 

I set a redo task on this to confirm it is fixed.
Blockedon: 805624
Status: Assigned (was: Started)
Status: Fixed (was: Assigned)
I cannot reproduce this @ HEAD or on the original revision. The reports of this issue have dropped off in stats over the last week, so I am thinking the underlying issue has been resolved.
Project Member

Comment 11 by ClusterFuzz, Apr 5 2018

ClusterFuzz has detected this issue as fixed in range 548153:548173.

Detailed report: https://clusterfuzz.com/testcase?key=5247265529921536

Fuzzer: libFuzzer_pdf_xml_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff42ef4ff8
Crash State:
  CFX_XMLAttributeNode::~CFX_XMLAttributeNode
  CFX_XMLElement::~CFX_XMLElement
  CFX_XMLElement::~CFX_XMLElement
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=465929:466779
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=548153:548173

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5247265529921536

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 12 by ClusterFuzz, Apr 5 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 5247265529921536 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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