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Issue 772262 link

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Issue metadata

Status: Verified
Owner:
Closed: Nov 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug-Security



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DCHECK failure in cursor - bytes.get() + buffer->length() <= total_size_ in streaming-decoder.cc

Project Member Reported by ClusterFuzz, Oct 6 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6128375109517312

Fuzzer: ochang_js_fuzzer
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: DCHECK failure
Crash Address: 
Crash State:
  cursor - bytes.get() + buffer->length() <= total_size_ in streaming-decoder.cc
  v8::internal::wasm::StreamingDecoder::Finish
  v8::internal::wasm::AsyncCompile
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_d8_dbg&range=48021:48022

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6128375109517312

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Cc: clemensh@chromium.org mtrofin@chromium.org
Owner: ahaas@chromium.org
Status: Assigned (was: Untriaged)
Regression range and stack trace points at 549692cbc0ab4e9929e6e5f13db879072b119fb0.
Components: -Blink>JavaScript Blink>JavaScript>WebAssembly
Project Member

Comment 3 by sheriffbot@chromium.org, Oct 6 2017

Labels: M-63
Project Member

Comment 4 by sheriffbot@chromium.org, Oct 6 2017

Labels: ReleaseBlock-Stable
This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 5 by sheriffbot@chromium.org, Oct 6 2017

Labels: Pri-1

Comment 6 by ahaas@chromium.org, Oct 6 2017

Labels: -Pri-1 -Security_Impact-Head -Security_Severity-High -ReleaseBlock-Stable Pri-2
This check fails only with a testing flag turned on, in a feature which is turned off by default at the moment. This is no release blocker.
Labels: Security_Impact-None
Project Member

Comment 8 by ClusterFuzz, Nov 16 2017

ClusterFuzz has detected this issue as fixed in range 49379:49380.

Detailed report: https://clusterfuzz.com/testcase?key=6128375109517312

Fuzzer: ochang_js_fuzzer
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: DCHECK failure
Crash Address: 
Crash State:
  cursor - bytes.get() + buffer->length() <= total_size_ in streaming-decoder.cc
  v8::internal::wasm::StreamingDecoder::Finish
  v8::internal::wasm::AsyncCompile
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_d8_dbg&range=48021:48022
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_d8_dbg&range=49379:49380

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6128375109517312

See https://github.com/google/clusterfuzz-tools 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, Nov 16 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6128375109517312 is verified as fixed, so closing issue as verified.

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

Comment 10 by sheriffbot@chromium.org, Nov 16 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Project Member

Comment 11 by sheriffbot@chromium.org, Feb 22 2018

Labels: -Restrict-View-SecurityNotify allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

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