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Issue metadata

Status: Duplicate
Merged: issue 697191
Owner:
Closed: Mar 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: ----
Type: Bug-Security



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Use-of-uninitialized-value in v8::internal::compiler::NodeCache<int, v8::base::hash<int>, std::__1::equal_to<i

Project Member Reported by ClusterFuzz, Mar 1 2017

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4825341219831808

Fuzzer: libfuzzer_v8_wasm_compile_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  v8::internal::compiler::NodeCache<int, v8::base::hash<int>, std::__1::equal_to<i
  v8::internal::compiler::JSGraph::Float32Constant
  v8::internal::wasm::WasmFullDecoder::DecodeFunctionBody
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=453545:453564

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv95LqD7LaxRZ_Lyt8h2tc9PoAfLwR5JX1tziKLm6ZWfXiwYcZOk_TB6IUqiWZslYYlZO_vqs4sM3GepB7B0pB_UYEYHM_kxT86XhPQPDzuWLZVPdmL119m7D-tAUJr1xOKcBb2-npHOTvyN2M9BFfMQAI6e55ZSDfqffoCR7WStcDc7fcyAtp2PlFtIwW1gP4vdGy1b3mrvggguPXecTLOqAH9tmFkjgqXeBhtujwyF65zzJzlKBwbhqBCvEnRXRd4Y4V42Btct0gCU8msv5mjA91njrOxNLurFiEAYO_92Y2AmlrhZN24PpjQrSXr1g-dYFt6JMl0QZcDCs0q0h8ivESlUzRCyFfbvJkCvxZywjdNkoj1c?testcase_id=4825341219831808


Issue filed automatically.

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

Comment 1 by vakh@chromium.org, Mar 1 2017

Cc: titzer@chromium.org
Components: Blink>JavaScript
Owner: ahaas@chromium.org
Status: Available (was: Untriaged)
Please help triage this and identify the right owner.

Comment 2 by ahaas@chromium.org, Mar 2 2017

Mergedinto: 697191
Status: Duplicate (was: Available)
Project Member

Comment 3 by ClusterFuzz, Mar 2 2017

ClusterFuzz has detected this issue as fixed in range 454045:454092.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4825341219831808

Fuzzer: libfuzzer_v8_wasm_compile_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  v8::internal::compiler::NodeCache<int, v8::base::hash<int>, std::__1::equal_to<i
  v8::internal::compiler::JSGraph::Float32Constant
  v8::internal::wasm::WasmFullDecoder::DecodeFunctionBody
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=453545:453564
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=454045:454092

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv95LqD7LaxRZ_Lyt8h2tc9PoAfLwR5JX1tziKLm6ZWfXiwYcZOk_TB6IUqiWZslYYlZO_vqs4sM3GepB7B0pB_UYEYHM_kxT86XhPQPDzuWLZVPdmL119m7D-tAUJr1xOKcBb2-npHOTvyN2M9BFfMQAI6e55ZSDfqffoCR7WStcDc7fcyAtp2PlFtIwW1gP4vdGy1b3mrvggguPXecTLOqAH9tmFkjgqXeBhtujwyF65zzJzlKBwbhqBCvEnRXRd4Y4V42Btct0gCU8msv5mjA91njrOxNLurFiEAYO_92Y2AmlrhZN24PpjQrSXr1g-dYFt6JMl0QZcDCs0q0h8ivESlUzRCyFfbvJkCvxZywjdNkoj1c?testcase_id=4825341219831808


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 4 by sheriffbot@chromium.org, Jun 9 2017

Labels: -Restrict-View-SecurityTeam 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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