Minimal test case:

Object.getOwnPropertyDescriptor(new Error(), 'stack').get.call("foo");

Looks like a missing type check in StackTraceGetter in src/js/messages.js . Should be easy to fix.

ClusterFuzz has detected this issue as fixed in range 35758:35759.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5986396493316096

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: RUNTIME_ASSERT
Crash Address: 
Crash State:
  args[0]->IsJSReceiver() in src/runtime/runtime-object.cc
  
Regressed: V8: r34400:34401
Fixed: V8: r35758:35759

Minimized Testcase (17.20 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94ZODUbKjvFIr9G5vEKpO_NM_oMR1BdY-EdwObczzdyFKrTDUcTicNuCjXQvAtGV2S6lBIwaesEYkKg1WTM_jXeBxSUgtMETtkc7M6cWFSaI1plY258B4hUTgBJJbm0eP3wQjgyJGY9F52vMXvnAFRSmMF2vQ7bEIoqmzQfNTa0aS00dEM

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.

I think the crash here went away due to https://codereview.chromium.org/1922453002 which effectively adds a ToObject before looking up the prototype. Still may make sense to add a type check, but the significance is reduced.

ClusterFuzz testcase is verified as fixed, closing issue.

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