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Issue metadata

Status: Verified
Owner:
Last visit > 30 days ago
Closed: Jul 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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CanElideLastBasedOnSourcePosition(node) in bytecode-peephole-optimizer.cc

Project Member Reported by ClusterFuzz, Jul 20 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6292713431629824

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_ignition_v8_arm_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  CanElideLastBasedOnSourcePosition(node) in bytecode-peephole-optimizer.cc
  
Regressed: V8: r37865:37866

Minimized Testcase (6.40 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96k8SQNl4MSeh4ACsgT-AvsFbPVxfbBM1G3xlSMB1Q6K4Rj-lmEu4cFeqC8TAh7W5UfHux-T4xecU61baGvBRwZgsKWr4IFzuMudsConNRQYr11yUU10zU-_UmBeHxVz88V7sRVMWXWgD51Rae8bE9-ZqWJFQ?testcase_id=6292713431629824

Filer: mstarzinger

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Cc: mythria@chromium.org rmcilroy@chromium.org
Owner: oth@chromium.org
Status: Assigned (was: Available)
Regression range points to table based peephole optimizer. Reproduces as follows ...

$ ./out/x64.debug/d8 --ignition mutant1217_regress-3650-1.js
$ cat mutant1217_regress-3650-1.js
function f(t) {
  var f = t || this;
  for (var i in t) {
    for (var j in t) {
      (j);
      continue;
    }
  }
  return eval.join('');
}
f();
Project Member

Comment 3 by ClusterFuzz, Jul 31 2016

ClusterFuzz has detected this issue as fixed in range 38139:38140.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6292713431629824

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_ignition_v8_arm_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  CanElideLastBasedOnSourcePosition(node) in bytecode-peephole-optimizer.cc
  
Regressed: V8: r37865:37866
Fixed: V8: r38139:38140

Minimized Testcase (6.40 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96k8SQNl4MSeh4ACsgT-AvsFbPVxfbBM1G3xlSMB1Q6K4Rj-lmEu4cFeqC8TAh7W5UfHux-T4xecU61baGvBRwZgsKWr4IFzuMudsConNRQYr11yUU10zU-_UmBeHxVz88V7sRVMWXWgD51Rae8bE9-ZqWJFQ?testcase_id=6292713431629824

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, Jul 31 2016

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

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

Comment 5 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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