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Issue metadata

Status: Verified
Owner:
Closed: May 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug


Participants' hotlists:
Hotlist-AsmJsParser


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Crash in v8::internal::wasm::AsmWasmBuilderImpl::LookupOrInsertFunction

Project Member Reported by ClusterFuzz, Apr 19 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5926602182754304

Fuzzer: mbarbella_js_mutation
Job Type: windows_asan_d8
Platform Id: windows

Crash Type: UNKNOWN READ
Crash Address: 0x00000004
Crash State:
  v8::internal::wasm::AsmWasmBuilderImpl::LookupOrInsertFunction
  v8::internal::wasm::AsmWasmBuilderImpl::VisitCallExpression
  v8::internal::wasm::AsmWasmBuilderImpl::VisitForEffect
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_d8&range=435209:435261

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv97HBByGJSeILOI8AYD6h3LCGXx68BvRwkvLr0LcrCcPuOEd88QotDAKnmh4iseulZc0OAiSHOCsbVwJMlIpjKHaHundKlrjDbRNyDMGZTORq7jiyud3FaC1r2HkKDXI4lOk-BIQKZF9Cgsmg57Qrz96HJw8cRBtUJfVKA4bdxJa7VvCaoa32rx1LbA4R8WM-yGPAn9zO3wDnjzL3qS8PEq-k5xwwoMEIIpVIWUjYwv7f6S51FaYOMQXcxktlqEOmyXIb_i1Vk36JHhsoo0bYDEmikBLhTlvWAIJeNKGBt6X9_3WC0_CErYU_t-YTku98_R__xD8dIJWwzdi1woKmwgsWJloQ_RrLPAAwgiZ652a3naoKoc?testcase_id=5926602182754304


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 

Comment 1 by ishell@chromium.org, Apr 21 2017

Owner: mstarzinger@chromium.org
Status: Assigned (was: Untriaged)
Another --validate-asm issue. Reproduces on TOT.
Labels: -Pri-1 Pri-2
Thanks! AFACIT, the new validator should not suffer from this problem. I'll keep the issue open until new validator is enabled.
Project Member

Comment 3 by ClusterFuzz, May 5 2017

ClusterFuzz has detected this issue as fixed in range 469332:469353.

Detailed report: https://clusterfuzz.com/testcase?key=5926602182754304

Fuzzer: mbarbella_js_mutation
Job Type: windows_asan_d8
Platform Id: windows

Crash Type: UNKNOWN READ
Crash Address: 0x00000004
Crash State:
  v8::internal::wasm::AsmWasmBuilderImpl::LookupOrInsertFunction
  v8::internal::wasm::AsmWasmBuilderImpl::VisitCallExpression
  v8::internal::wasm::AsmWasmBuilderImpl::VisitForEffect
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_d8&range=435209:435261
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_d8&range=469332:469353

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5926602182754304


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 4 by ClusterFuzz, May 5 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5926602182754304 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Yep, has been fixed by switching to new asm.js validator.

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