New issue
Advanced search Search tips

Issue 853647 link

Starred by 2 users

Issue metadata

Status: Verified
Owner:
Closed: Jul 19
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 1
Type: Bug



Sign in to add a comment

Null-dereference READ in CPDF_Array::GetDirectObjectAt

Project Member Reported by ClusterFuzz, Jun 18 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5596929627783168

Fuzzer: libFuzzer_pdfium_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  CPDF_Array::GetDirectObjectAt
  CPDF_Array::GetDictAt
  CPDF_Document::TraversePDFPages
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=566274:566287

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5596929627783168

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jun 18 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, Jun 18 2018

Cc: dsinclair@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Project Member

Comment 3 by ClusterFuzz, Jun 18 2018

Cc: art-sn...@yandex-team.ru
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

Implement CPDF_Object::MakeReference method. by art-snake@yandex-team.ru - https://pdfium.googlesource.com/pdfium/+/fb72726e51bfd0c7bfc61c9b354e2b60f46adac5

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
Owner: dsinclair@chromium.org
Status: Assigned (was: Untriaged)
Project Member

Comment 5 by ClusterFuzz, Jun 20 2018

Labels: OS-Mac
Project Member

Comment 6 by ClusterFuzz, Jul 19

ClusterFuzz has detected this issue as fixed in range 576003:576006.

Detailed report: https://clusterfuzz.com/testcase?key=5596929627783168

Fuzzer: libFuzzer_pdfium_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  CPDF_Array::GetDirectObjectAt
  CPDF_Array::GetDictAt
  CPDF_Document::TraversePDFPages
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=566274:566287
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=576003:576006

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5596929627783168

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 7 by ClusterFuzz, Jul 19

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5596929627783168 is verified as fixed, so closing issue as verified.

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

Sign in to add a comment