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Issue 654377 link

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Issue metadata

Status: Verified
Owner:
Closed: Oct 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Crash in v8::internal::wasm::WasmFullDecoder::CreateOrMergeIntoPhi

Project Member Reported by ClusterFuzz, Oct 10 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5328558069383168

Fuzzer: afl_v8_wasm_code_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000060
Crash State:
  v8::internal::wasm::WasmFullDecoder::CreateOrMergeIntoPhi
  v8::internal::wasm::WasmFullDecoder::MergeValuesInto
  v8::internal::wasm::WasmFullDecoder::DecodeFunctionBody
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=421457:421501

Minimized Testcase (0.02 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96RaupPbCzv2hlwcaZ7yTiDZvlUWoq0VQvnckUlsHKm9gi2_Ug8G8QTA15EGS5q9aFu-JX-wnSGEnhTHzVt3Zhryqnup9GZhTnXF15rHe7XXJDY4hWgEyie77VTPgt3deMqmqaalFm9YCnCPMA0fRkdL068tQ?testcase_id=5328558069383168

Issue manually filed by: nyerramilli

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Cc: nyerramilli@chromium.org
Components: Blink>JavaScript Tools>Test>FindIt>NoResult
Labels: findit-wrong Te-Logged
Providing Find it results for internal purpose:
Suspected CLs	Findit failed to find any stack trace. Is it in a new format?

requesting v8 team to look into this issue.
Owner: ahaas@chromium.org
Status: Assigned (was: Untriaged)

Comment 3 by ahaas@chromium.org, Oct 10 2016

Status: Started (was: Assigned)
Project Member

Comment 4 by bugdroid1@chromium.org, Oct 13 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/0e1f6d8bfc62a09163a758322bd26a3e8696ef2c

commit 0e1f6d8bfc62a09163a758322bd26a3e8696ef2c
Author: ahaas <ahaas@chromium.org>
Date: Thu Oct 13 08:21:32 2016

[wasm] Do not create TF nodes during verification

BUG= chromium:654377 
TEST=mjsunit/regress/wasm/regression-654377
R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2403013002
Cr-Commit-Position: refs/heads/master@{#40246}

[modify] https://crrev.com/0e1f6d8bfc62a09163a758322bd26a3e8696ef2c/src/wasm/ast-decoder.cc
[add] https://crrev.com/0e1f6d8bfc62a09163a758322bd26a3e8696ef2c/test/mjsunit/regress/wasm/regression-654377.js

Project Member

Comment 5 by ClusterFuzz, Oct 14 2016

ClusterFuzz has detected this issue as fixed in range 424989:425001.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5328558069383168

Fuzzer: afl_v8_wasm_code_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000060
Crash State:
  v8::internal::wasm::WasmFullDecoder::CreateOrMergeIntoPhi
  v8::internal::wasm::WasmFullDecoder::MergeValuesInto
  v8::internal::wasm::WasmFullDecoder::DecodeFunctionBody
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=421457:421501
Fixed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=424989:425001

Minimized Testcase (0.02 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96RaupPbCzv2hlwcaZ7yTiDZvlUWoq0VQvnckUlsHKm9gi2_Ug8G8QTA15EGS5q9aFu-JX-wnSGEnhTHzVt3Zhryqnup9GZhTnXF15rHe7XXJDY4hWgEyie77VTPgt3deMqmqaalFm9YCnCPMA0fRkdL068tQ?testcase_id=5328558069383168

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, Oct 14 2016

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

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Components: -Tools>Test>FindIt>NoResult
Project Member

Comment 8 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

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

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