New issue
Advanced search Search tips

Issue 854496 link

Starred by 1 user

Issue metadata

Status: WontFix
Owner:
Closed: Jun 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 1
Type: Bug



Sign in to add a comment

Timeout in pdf_codec_jpeg_fuzzer

Project Member Reported by ClusterFuzz, Jun 20 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6416342731980800

Fuzzer: libFuzzer_pdf_codec_jpeg_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Timeout (exceeds 25 secs)
Crash Address: 
Crash State:
  pdf_codec_jpeg_fuzzer
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=400757:400887

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6416342731980800

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 20 2018

Cc: dsinclair@chromium.org jam@chromium.org brucedaw...@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 2 by ClusterFuzz, Jun 20 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/+/54d027dbbff8a0270531855082e4f61cb457c173 (Fixup LoadImageInfo type checking.).

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.
Owner: rharrison@chromium.org
Components: Internals>Plugins>PDF
Status: Started (was: Assigned)
Labels: ClusterFuzz-Ignore
Status: WontFix (was: Started)
After profiling this, it looks like it is doing a bunch of calls to consume_data in libjpeg_turbo. The image being rendered isn't huge and given enough time it will finish the fuzz operation, so I think this is just a pathologically bad jpeg for libjpeg_turbo.
Project Member

Comment 6 by ClusterFuzz, Oct 21

Labels: OS-Windows
Project Member

Comment 7 by ClusterFuzz, Nov 29

Labels: OS-Mac
Project Member

Comment 8 by ClusterFuzz, Dec 1

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 6416342731980800 appears to be flaky, updating reproducibility label.

Sign in to add a comment