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Issue 600255 link

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Issue metadata

Status: Fixed
Owner:
Closed: Apr 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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RUNTIME_ASSERT in args[0]->IsJSFunction() in src/runtime/runtime-test.cc

Project Member Reported by ClusterFuzz, Apr 4 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6659559338278912

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: RUNTIME_ASSERT
Crash Address: 
Crash State:
  args[0]->IsJSFunction() in src/runtime/runtime-test.cc
  
Regressed: V8: r34400:34401

Minimized Testcase (8.25 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97UxTRPyflflfrfxyKgw2-c_IIC97aWAzL45z6DF-0ezxEOs5p95yfy_4zrBouIbCbaGO0ns_LsWqFeghQau58ImCknRvJR3P505Lcc7Sm_h8ZdJmQVwE9ZhzrehA6XaCPO0GNhatijd7Q__jcFJ0w6ktNPcg

Filer: hablich

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Owner: ishell@chromium.org
Status: Assigned (was: Available)
Cc: littledan@chromium.org
Owner: mbarbe...@chromium.org
This is similar to issue 596719. It seems that this test managed to pass through the arguments check for %OptimizeFunctionOnNextCall(): 
In the test we have
  %OptimizeFunctionOnNextCall(__f_1.prototype.foo);

and "__f_1.prototype.foo" WILL be a function a couple of lines later but not yet.
Status: Fixed (was: Assigned)
The fuzzer will now only keep the call if the argument is known to be a function.
Project Member

Comment 4 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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