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Issue metadata

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



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Crash in GetChars

Project Member Reported by ClusterFuzz, Oct 26 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6090774493265920

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_ignition_dbg
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000000
Crash State:
  GetChars
  v8::internal::String::GetFlatContent
  v8::internal::__RT_impl_Runtime_StringParseInt
  
Regressed: V8: r39415:39416

Minimized Testcase (0.28 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv96TwxgCnr-Y9A7RKkM7szV_Kmb9-t-vBvlN74ejGD1AsLKRlIM0wp8BV_9UBP1qf0D8xXZ23OLcjBaBnHBxZLorweAbDwVviSQK9AyJsviNMJgMtgbpbIW1l3sIenwwkXNeWK7-yNVCtyECK4QRitrNamNI_g?testcase_id=6090774493265920
try {
( {
})();
} catch(e) {; }
function __f_19() {
  __v_18 = new Set();
}
function __f_18() {
  __v_18.xyz = 0x826852f4;
}
__f_19();
__f_19();
%OptimizeFunctionOnNextCall(__f_19);
__f_19();
__f_18();
__f_18();
%OptimizeFunctionOnNextCall(__f_18);
__f_18();
__f_19();
__f_18();
parseInt();


Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 27 2016

ClusterFuzz has detected this issue as fixed in range 40591:40592.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6090774493265920

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_ignition_dbg
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000000
Crash State:
  GetChars
  v8::internal::String::GetFlatContent
  v8::internal::__RT_impl_Runtime_StringParseInt
  
Regressed: V8: r39415:39416
Fixed: V8: r40591:40592

Minimized Testcase (0.28 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv96TwxgCnr-Y9A7RKkM7szV_Kmb9-t-vBvlN74ejGD1AsLKRlIM0wp8BV_9UBP1qf0D8xXZ23OLcjBaBnHBxZLorweAbDwVviSQK9AyJsviNMJgMtgbpbIW1l3sIenwwkXNeWK7-yNVCtyECK4QRitrNamNI_g?testcase_id=6090774493265920
try {
( {
})();
} catch(e) {; }
function __f_19() {
  __v_18 = new Set();
}
function __f_18() {
  __v_18.xyz = 0x826852f4;
}
__f_19();
__f_19();
%OptimizeFunctionOnNextCall(__f_19);
__f_19();
__f_18();
__f_18();
%OptimizeFunctionOnNextCall(__f_18);
__f_18();
__f_19();
__f_18();
parseInt();


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, Oct 27 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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