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Issue metadata

Status: Verified
Owner: ----
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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DCHECK failure in IsWasmExportedFunction(object) in wasm-objects.cc

Project Member Reported by ClusterFuzz, Sep 8 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4973175388766208

Fuzzer: libFuzzer_v8_wasm_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: DCHECK failure
Crash Address: 
Crash State:
  IsWasmExportedFunction(object) in wasm-objects.cc
  v8::internal::WasmExportedFunction::cast
  cast<v8::internal::Object>
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=500422:500485

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4973175388766208

Issue filed automatically.

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

Comment 1 by sheriffbot@chromium.org, Sep 9 2017

Labels: M-62
Project Member

Comment 2 by sheriffbot@chromium.org, Sep 9 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 3 by sheriffbot@chromium.org, Sep 9 2017

Labels: Pri-1
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Comment 4 by sheriffbot@chromium.org, Sep 10 2017

Labels: -Security_Impact-Head Security_Impact-Beta
Project Member

Comment 5 by ClusterFuzz, Sep 12 2017

ClusterFuzz has detected this issue as fixed in range 500938:500987.

Detailed report: https://clusterfuzz.com/testcase?key=4973175388766208

Fuzzer: libFuzzer_v8_wasm_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: DCHECK failure
Crash Address: 
Crash State:
  IsWasmExportedFunction(object) in wasm-objects.cc
  v8::internal::WasmExportedFunction::cast
  cast<v8::internal::Object>
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=500422:500485
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=500938:500987

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4973175388766208

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.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 6 by ClusterFuzz, Sep 12 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 4973175388766208 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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Comment 7 by sheriffbot@chromium.org, Sep 12 2017

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

Comment 8 by sheriffbot@chromium.org, Sep 15 2017

Labels: Merge-Request-62
Project Member

Comment 9 by sheriffbot@chromium.org, Sep 15 2017

Labels: -Merge-Request-62 Merge-Review-62 Hotlist-Merge-Review
This bug requires manual review: M62 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: amineer@(Android), cmasso@(iOS), bhthompson@(ChromeOS), abdulsyed@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Labels: -Merge-Review-62 Merge-Approved-62
Approving merge for M62. Branch:3202
Project Member

Comment 11 by sheriffbot@chromium.org, Sep 19 2017

Cc: abdulsyed@google.com
This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

Thanks for your time! To disable nags, add the Disable-Nags label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Labels: -Merge-Approved-62 Merge-TBD
Unclear what needs to be merged here. Removing approved and adding Merge-TBD
Looks like a trunk regression based on regression range:

https://chromium.googlesource.com/chromium/src/+log/aaeccdba2b242b391fd763b1fa31aca44582abed..b308ebb13a4ef412e972d45d89be402ca05cd63a?pretty=fuller&n=10000

I don't think a merge is required here.
Labels: -Merge-TBD
Thanks - removing Merge-TBD label. 
Labels: -ReleaseBlock-Stable
Project Member

Comment 16 by sheriffbot@chromium.org, Dec 19 2017

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
Project Member

Comment 17 by sheriffbot@chromium.org, Mar 27 2018

Labels: -Security_Impact-Beta -M-62 M-65 Security_Impact-Stable

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