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Issue metadata

Status: Fixed
Owner:
Last visit > 30 days ago
Closed: Jun 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Crash in v8::internal::FunctionDeclaration::fun

Project Member Reported by ClusterFuzz, Jun 7 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6631961217204224

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000020
Crash State:
  v8::internal::FunctionDeclaration::fun
  v8::TranslateAsmModule
  v8::InstantiateModuleFromAsm
  
Regressed: V8: r34586:34587

Minimized Testcase (0.23 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv95yxLFLqX_rVmvIfsu06ciDSrYkAPL0lR8NPcO9pdYJnUkQYbWN_UsTHZUqxQV2-09-2IQRiWEet7spMVK-SW4GCxka7dHrCm3w9_ZZxnI7m0IsEABOAbIGsjUssOeJF86QUgz_ui_C4edAivzPKEsgFcmzyg
function __f_0(s) {
  return 'while(true) { try { "try"; break } finally { "finally" }; ' + s + ' }';
}
__v_0 = __f_0('if (true) 2; else var x = 3;');
  var __v_3 = Wasm.instantiateModuleFromAsm(__v_0);
function __f_8() {
  return {
};
}


Filer: mstarzinger

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Cc: bradnelson@chromium.org
Owner: titzer@chromium.org
Status: Assigned (was: Available)
Cc: titzer@chromium.org
Components: -Blink>JavaScript Blink>JavaScript>WebAssembly
Labels: -Pri-1 BlockAsmWasmLaunch Pri-2
Owner: bradnelson@chromium.org
Project Member

Comment 3 by ClusterFuzz, Jun 28 2016

ClusterFuzz has detected this testcase as flaky and is unable to reproduce it in the original crash revision. Skipping fixed testing check and marking it as potentially fixed.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6631961217204224

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000020
Crash State:
  v8::internal::FunctionDeclaration::fun
  v8::TranslateAsmModule
  v8::InstantiateModuleFromAsm
  

Unminimized Testcase: https://cluster-fuzz.appspot.com/download/AMIfv97WALc2wcM0FJKrvgwKq51EIKQtipm9_2OhNCE_419jwR3bmx3vLfua3gRoHR5KrjWofFW2XlIicNKKwd3RTUyspTB4NQUt34lGFBsnth9PST6EnfkCsMJvAP2HUp8fHBRe3U_jXkCXYSIwzprV-0krn2Hqb8cHWigYsyghmL_zy5qskls?testcase_id=6631961217204224


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.
Labels: -BlockAsmWasmLaunch BlocksAsmWasmLaunch

Comment 5 by titzer@chromium.org, Jun 29 2016

Status: Fixed (was: Assigned)
Project Member

Comment 6 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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