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Issue metadata

Status: Duplicate
Merged: issue 669817
Owner: ----
Closed: Nov 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Unreachable code in asm-wasm-builder.cc

Project Member Reported by ClusterFuzz, Nov 30 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5437676506578944

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_v8_mipsel_dbg
Platform Id: linux

Crash Type: Unreachable code
Crash Address: 
Crash State:
  asm-wasm-builder.cc
  
Regressed: V8: r41371:41372

Minimized Testcase (0.11 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv97VcPb7Nw-auxeADDW0h-XcbMMFq4NIPXaSMwtWjWCc0fiUgCGnqKhiXlzdKbvtdbFqhzI2Xwy8V28mf3SSLhu2rFcHItZyyBv2BGWEpdinvNrtctAP1XDXU878Zbgv6Mnbzl8ajq9sqmW1wSfRNSgzqiEKkQ?testcase_id=5437676506578944
function __f_3(stdlib) {
  "use asm";
  function __f_4(a) {
    a = +a;
    gc();
  }
}
var __f_4 = __f_3().__f_4;


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Mergedinto: 669817
Status: Duplicate (was: Untriaged)
Project Member

Comment 2 by ClusterFuzz, Jan 10 2017

ClusterFuzz has detected this issue as fixed in range 42157:42158.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5437676506578944

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_v8_mipsel_dbg
Platform Id: linux

Crash Type: Unreachable code
Crash Address: 
Crash State:
  asm-wasm-builder.cc
  
Sanitizer: address (ASAN)

Regressed: V8: r41371:41372
Fixed: V8: r42157:42158

Minimized Testcase (0.11 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv97VcPb7Nw-auxeADDW0h-XcbMMFq4NIPXaSMwtWjWCc0fiUgCGnqKhiXlzdKbvtdbFqhzI2Xwy8V28mf3SSLhu2rFcHItZyyBv2BGWEpdinvNrtctAP1XDXU878Zbgv6Mnbzl8ajq9sqmW1wSfRNSgzqiEKkQ?testcase_id=5437676506578944
function __f_3(stdlib) {
  "use asm";
  function __f_4(a) {
    a = +a;
    gc();
  }
}
var __f_4 = __f_3().__f_4;


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.

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