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Issue metadata

Status: Fixed
Owner:
Closed: Oct 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug



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Integer-overflow in blink::HTMLInputElement::stepDown

Project Member Reported by ClusterFuzz, Oct 24 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5155157170192384

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  blink::HTMLInputElement::stepDown
  stepDownMethod
  blink::HTMLInputElementV8Internal::stepDownMethodCallback
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=370022:370027

Minimized Testcase (0.15 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv94L1ktBFkiE-h-BsadhfxDVuP1psH7vLrNZnbhly3GIvI8R-iWgd0xmA6onluQzHKzDDRLigOJ7GOKF1myGqm3fRtm91OemWxqsMpFi6FrwrqPSNeY-wOuS_mLDlhHtzaNMMK3m65t18eKsGCQlRWYs-sU7cQ?testcase_id=5155157170192384
<script>
function jsfuzzer() {
 htmlvar00004.stepDown(2147483648); 
}
</script>
<body onload=jsfuzzer()>
<input id="htmlvar00004" value="ydjHPezu4]t"k">


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Components: Blink>HTML
Labels: M-55 Te-Logged
Owner: tkent@chromium.org
Status: Assigned (was: Untriaged)
Author: Blink Reformat
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/1c8e1a7719e9d223cc84e838c9a31a0210f5878b
Time: Sat Oct 01 00:25:32 2016
The CL last changed line 283 of file HTMLInputElement.cpp, which is stack frame 0.

Suspected Project: chromium
Suspected Component: Blink>HTML

Through code search on file HTMLInputElement.cpp, latest changes done by tkent@. could you please take a look and help us to find correct owner if it is not related your changes.

Comment 2 by tkent@chromium.org, Oct 24 2016

Components: -Blink>HTML Blink>Forms
Labels: -Pri-2 -M-55 Pri-3
Owner: ----
Status: Available (was: Assigned)

Comment 3 by tkent@chromium.org, Oct 26 2016

Owner: tkent@chromium.org
Status: Started (was: Available)

Comment 5 by tkent@chromium.org, Oct 26 2016

Labels: M-56
Status: Fixed (was: Started)
Project Member

Comment 6 by ClusterFuzz, Oct 28 2016

ClusterFuzz has detected this issue as fixed in range 427578:427883.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5155157170192384

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  blink::HTMLInputElement::stepDown
  stepDownMethod
  blink::HTMLInputElementV8Internal::stepDownMethodCallback
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=370022:370027
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=427578:427883

Minimized Testcase (0.15 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv94L1ktBFkiE-h-BsadhfxDVuP1psH7vLrNZnbhly3GIvI8R-iWgd0xmA6onluQzHKzDDRLigOJ7GOKF1myGqm3fRtm91OemWxqsMpFi6FrwrqPSNeY-wOuS_mLDlhHtzaNMMK3m65t18eKsGCQlRWYs-sU7cQ?testcase_id=5155157170192384
<script>
function jsfuzzer() {
 htmlvar00004.stepDown(2147483648); 
}
</script>
<body onload=jsfuzzer()>
<input id="htmlvar00004" value="ydjHPezu4]t"k">


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 7 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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