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Issue metadata

Status: WontFix
Owner: ----
Closed: Jan 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in position_cluster

Project Member Reported by ClusterFuzz, Dec 27 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6273032663597056

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  position_cluster
  _hb_ot_shape_fallback_position
  hb_ot_position
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=434178:434216

Minimized Testcase (0.19 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv96Iqm6XfN2-GxMNK71HlUqm4JMbk3dkZO_xMqxEKwaWL9VI3RByu2HHBNHSvGDXWNGN8UB089MZk_vk4tUwUUAran9VCQumr8uZgtAyvTbFdxt6irSSlLnW9fYJblV-eUII6YfA8h6EVs9HiOrxDqcWSw-3xA?testcase_id=6273032663597056
<body id=tCF1><section>
            بِِِِِِِِِِِِِِِِِِِِِِِِِِِِِِِا<style>
* { box-pack: justify; font-size: 6ex;</style><script>
tCF1.style.zoom = 25;
</script>


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Components: Blink>Fonts
Labels: Test-Predator-Wrong M-57

Comment 2 by e...@chromium.org, Jan 2 2017

Status: WontFix (was: Untriaged)
Project Member

Comment 3 by ClusterFuzz, Feb 17 2017

ClusterFuzz has detected this issue as fixed in range 451144:451201.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6273032663597056

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  position_cluster
  _hb_ot_shape_fallback_position
  hb_ot_position
  
Sanitizer: undefined (UBSAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=434178:434216
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=451144:451201

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv96Iqm6XfN2-GxMNK71HlUqm4JMbk3dkZO_xMqxEKwaWL9VI3RByu2HHBNHSvGDXWNGN8UB089MZk_vk4tUwUUAran9VCQumr8uZgtAyvTbFdxt6irSSlLnW9fYJblV-eUII6YfA8h6EVs9HiOrxDqcWSw-3xA?testcase_id=6273032663597056


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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