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Issue 639475 link

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Issue metadata

Status: Verified
Owner: ----
Closed: Aug 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Crash in v8::internal::LookupIterator::GetRoot

Project Member Reported by ClusterFuzz, Aug 19 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5835461044207616

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::LookupIterator::GetRoot
  v8::internal::LookupIterator::LookupIterator
  v8::internal::Object::GetProperty
  
Regressed: V8: r38759:38760

Minimized Testcase (0.26 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv94ZRc8bVPS8iVlFPC_w0gr2nmmVsKGtU8ur-i568wBnAFYmFRasWTL5QVLt5akpF1U1_d4sSFh61A1tggdOszmenMsYcr6BPRBX2LzYQ9-ADFwWKWzchA7x3h0BOV6ifh-jGrwcyUzKvcvLzeQBH0xLAkATiw?testcase_id=5835461044207616
(function __f_17() {
  function __f_34(stdlib) {
    "use asm";
    var __v_34 = stdlib.NaN;
    function __f_32() {
    }
    function __f_18() {
      return +__v_34;
    }
    return {};
  }
  var __v_55 =Wasm.instantiateModuleFromAsm(__f_34.toString());
})();


Issue manually filed by: mummareddy

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

Comment 1 by ClusterFuzz, Aug 23 2016

ClusterFuzz has detected this issue as fixed in range 38805:38806.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5835461044207616

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::LookupIterator::GetRoot
  v8::internal::LookupIterator::LookupIterator
  v8::internal::Object::GetProperty
  
Regressed: V8: r38759:38760
Fixed: V8: r38805:38806

Minimized Testcase (0.26 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv94ZRc8bVPS8iVlFPC_w0gr2nmmVsKGtU8ur-i568wBnAFYmFRasWTL5QVLt5akpF1U1_d4sSFh61A1tggdOszmenMsYcr6BPRBX2LzYQ9-ADFwWKWzchA7x3h0BOV6ifh-jGrwcyUzKvcvLzeQBH0xLAkATiw?testcase_id=5835461044207616
(function __f_17() {
  function __f_34(stdlib) {
    "use asm";
    var __v_34 = stdlib.NaN;
    function __f_32() {
    }
    function __f_18() {
      return +__v_34;
    }
    return {};
  }
  var __v_55 =Wasm.instantiateModuleFromAsm(__f_34.toString());
})();


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 2 by ClusterFuzz, Aug 23 2016

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
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 3 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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