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Issue metadata

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



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Crash in mbsnrtowcs

Project Member Reported by ClusterFuzz, Dec 16 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5184466189549568

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_ignition_v8_arm_dbg
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x9a8186d8
Crash State:
  mbsnrtowcs
  v8::internal::libc_memchr
  v8::internal::Simulator::SoftwareInterrupt
  
Recommended Security Severity: Medium

Regressed: V8: r41759:41760

Minimized Testcase (0.12 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv957A47xoJX7V2jomsXxilY9IjOTXYu9ZqQZjTdMrrr0eUOcDlMs7_Vw1DTXmTWG0vU8Oh0kzA8YR2T4erRUkSt4E608CmyTE7sxyPyePPO5i5qsbje5KBO3QYr80i7pPbP7jLe5mkLV-CerPrp1xyxjIDiS5Q?testcase_id=5184466189549568
var __v_10 = {};
__v_10 = "test test test";
 __v_10.indexOf("t", -1073741824);
function __f_0() {
}
(function __f_1() {
})();


Issue filed automatically.

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

Comment 1 by sheriffbot@chromium.org, Dec 17 2016

Labels: M-57
Project Member

Comment 2 by sheriffbot@chromium.org, Dec 17 2016

Labels: ReleaseBlock-Beta
This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 3 by sheriffbot@chromium.org, Dec 17 2016

Labels: Pri-1
Cc: rmcilroy@chromium.org mythria@chromium.org leszeks@chromium.org
Owner: titzer@chromium.org
Status: Assigned (was: Untriaged)
This is crashing in the simulator. Not sure if actionable. Assigning to CF sheriff for triage.
Project Member

Comment 5 by ClusterFuzz, Dec 21 2016

ClusterFuzz has detected this issue as fixed in range 41857:41858.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5184466189549568

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_ignition_v8_arm_dbg
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x9a8186d8
Crash State:
  mbsnrtowcs
  v8::internal::libc_memchr
  v8::internal::Simulator::SoftwareInterrupt
  
Recommended Security Severity: Medium

Regressed: V8: r41759:41760
Fixed: V8: r41857:41858

Minimized Testcase (0.12 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv957A47xoJX7V2jomsXxilY9IjOTXYu9ZqQZjTdMrrr0eUOcDlMs7_Vw1DTXmTWG0vU8Oh0kzA8YR2T4erRUkSt4E608CmyTE7sxyPyePPO5i5qsbje5KBO3QYr80i7pPbP7jLe5mkLV-CerPrp1xyxjIDiS5Q?testcase_id=5184466189549568
var __v_10 = {};
__v_10 = "test test test";
 __v_10.indexOf("t", -1073741824);
function __f_0() {
}
(function __f_1() {
})();


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 6 by ClusterFuzz, Dec 21 2016

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5184466189549568 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Project Member

Comment 7 by sheriffbot@chromium.org, Dec 21 2016

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Labels: -ReleaseBlock-Beta
Project Member

Comment 9 by sheriffbot@chromium.org, Mar 29 2017

Labels: -Restrict-View-SecurityNotify allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

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