New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 921373 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: Jan 16
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



Sign in to add a comment

Timeout in pdf_cmap_fuzzer

Project Member Reported by ClusterFuzz, Jan 13

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5111017037889536

Fuzzer: libFuzzer_pdf_cmap_fuzzer
Fuzz target binary: pdf_cmap_fuzzer
Job Type: x86_libfuzzer_chrome_asan
Platform Id: linux

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

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5111017037889536

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.
 
Project Member

Comment 1 by ClusterFuzz, Jan 13

Cc: tsepez@chromium.org dsinclair@chromium.org weili@chromium.org caryclark@google.com npm@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.
Cc: kkaluri@chromium.org rharrison@chromium.org
Labels: M-72 Test-Predator-Wrong CF-NeedsTriage
Unable to provide possible suspect using Predator, CL and Code Search.
With reference to the  Issue 881678 , CC'ing it to the rharrison@ for further triage.
Cc: -rharrison@chromium.org
Components: Internals>Plugins>PDF
Owner: thestig@chromium.org
No longer working on PDFium, forwarding to the thestig@ for triage.
The input is rather big but does not seem to add much value.
Project Member

Comment 5 by bugdroid1@chromium.org, Jan 16 (6 days ago)

The following revision refers to this bug:
  https://pdfium.googlesource.com/pdfium/+/b440777fde3300145493ca117c556409db7261c0

commit b440777fde3300145493ca117c556409db7261c0
Author: Lei Zhang <thestig@chromium.org>
Date: Wed Jan 16 19:30:47 2019

Limit pdf_cmap_fuzzer input to 256 KB.

Larger inputs are unlikely to do anything interesting with
CPDF_CMap::LoadEmbedded().

BUG= chromium:921373 

Change-Id: I51adc25a316d5d8828418e3325bd37be3ec71395
Reviewed-on: https://pdfium-review.googlesource.com/c/48350
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

[modify] https://crrev.com/b440777fde3300145493ca117c556409db7261c0/testing/fuzzers/pdf_cmap_fuzzer.cc

Comment 6 by thestig@chromium.org, Jan 16 (6 days ago)

Status: Fixed (was: Untriaged)
Project Member

Comment 7 by bugdroid1@chromium.org, Jan 16 (6 days ago)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e0cff9d23c63d20cba60375a84e5c94cc9974378

commit e0cff9d23c63d20cba60375a84e5c94cc9974378
Author: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Date: Wed Jan 16 23:31:18 2019

Roll src/third_party/pdfium f054f62ad178..28cfe34a89f2 (4 commits)

https://pdfium.googlesource.com/pdfium.git/+log/f054f62ad178..28cfe34a89f2


git log f054f62ad178..28cfe34a89f2 --date=short --no-merges --format='%ad %ae %s'
2019-01-16 tsepez@chromium.org Remove unreachable code paths in cxfa_document_parser.cpp
2019-01-16 tsepez@chromium.org Tidy CXFA_EventParam
2019-01-16 thestig@chromium.org Limit pdf_cmap_fuzzer input to 256 KB.
2019-01-16 thestig@chromium.org Improve LoadCIDType0Font test to check dictionary entry types.


Created with:
  gclient setdep -r src/third_party/pdfium@28cfe34a89f2

The AutoRoll server is located here: https://autoroll.skia.org/r/pdfium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.



BUG= chromium:921373 
TBR=dsinclair@chromium.org

Change-Id: I772168457ab44bfa8d06ede1f0edf9a79ebd3ae9
Reviewed-on: https://chromium-review.googlesource.com/c/1415972
Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#623448}
[modify] https://crrev.com/e0cff9d23c63d20cba60375a84e5c94cc9974378/DEPS

Project Member

Comment 8 by ClusterFuzz, Jan 17 (6 days ago)

ClusterFuzz has detected this issue as fixed in range 623417:623458.

Detailed report: https://clusterfuzz.com/testcase?key=5111017037889536

Fuzzer: libFuzzer_pdf_cmap_fuzzer
Fuzz target binary: pdf_cmap_fuzzer
Job Type: x86_libfuzzer_chrome_asan
Platform Id: linux

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

Fixed: https://clusterfuzz.com/revisions?job=x86_libfuzzer_chrome_asan&range=623417:623458

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5111017037889536

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.

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, Jan 17 (6 days ago)

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 5111017037889536 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