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Issue 845117 link

Starred by 2 users

Issue metadata

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



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Timeout in pdf_codec_fax_fuzzer

Project Member Reported by ClusterFuzz, May 21 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5949763573514240

Fuzzer: libFuzzer_pdf_codec_fax_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

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

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=456526:456561

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5949763573514240

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 21 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, May 21 2018

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

Fix some nits in fx_codec_fax by npm@chromium.org - https://pdfium.googlesource.com/pdfium/+/723987910fb195e454aab28e1088df4f9ccf0d6e

Check run lengths in FaxG4GetRow by npm@chromium.org - https://pdfium.googlesource.com/pdfium/+/8ba662443cd7bc3bdad1699cf014c2ecb432e453

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
Components: Internals>Plugins>PDF
Owner: thestig@chromium.org
Labels: CF-NeedsTriage
Status: Started (was: Untriaged)
https://pdfium-review.googlesource.com/c/pdfium/+/33650
Project Member

Comment 6 by bugdroid1@chromium.org, Jun 5 2018

The following revision refers to this bug:
  https://pdfium.googlesource.com/pdfium/+/22de733a693f27c90f58ee13cfd398c55d9a064f

commit 22de733a693f27c90f58ee13cfd398c55d9a064f
Author: Lei Zhang <thestig@chromium.org>
Date: Tue Jun 05 17:50:01 2018

Further improve CCodec_FaxDecoder performance in debug builds.

BUG= chromium:845117 

Change-Id: Id1c97bc40ff776f52011a8ab2d6e5166cd7c64c8
Reviewed-on: https://pdfium-review.googlesource.com/33650
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

[modify] https://crrev.com/22de733a693f27c90f58ee13cfd398c55d9a064f/core/fxcodec/codec/fx_codec_fax.cpp

Status: Fixed (was: Started)
Project Member

Comment 8 by ClusterFuzz, Jun 6 2018

ClusterFuzz has detected this issue as fixed in range 564687:564700.

Detailed report: https://clusterfuzz.com/testcase?key=5949763573514240

Fuzzer: libFuzzer_pdf_codec_fax_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

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

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=456526:456561
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=564687:564700

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5949763573514240

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 9 by ClusterFuzz, Jun 6 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 5949763573514240 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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