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Issue 808678 link

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Issue metadata

Status: Verified
Owner:
Closed: May 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in sw::RectT<int>::width

Project Member Reported by ClusterFuzz, Feb 2 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5617188212572160

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  sw::RectT<int>::width
  es2::Device::ClipSrcRect
  es2::Context::blitFramebuffer
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=529742:529750

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5617188212572160

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Feb 2 2018

Components: Internals>GPU>SwiftShader
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Cc: kkaluri@chromium.org
Labels: M-66
Owner: capn@chromium.org
Status: Assigned (was: Untriaged)
Since it is related to SwiftShader component, assigning it to the capn@ for further triage

Comment 3 by capn@chromium.org, Feb 5 2018

Cc: capn@chromium.org
Owner: sugoi@chromium.org
Looks very similar to Issue 804072. Alexis, can you have a look?
Project Member

Comment 4 by ClusterFuzz, May 30 2018

ClusterFuzz has detected this issue as fixed in range 562746:562750.

Detailed report: https://clusterfuzz.com/testcase?key=5617188212572160

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  sw::RectT<int>::width
  es2::Device::ClipSrcRect
  es2::Context::blitFramebuffer
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=529742:529750
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=562746:562750

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5617188212572160

See https://github.com/google/clusterfuzz-tools 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 5 by ClusterFuzz, May 30 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5617188212572160 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Must be https://chromium-review.googlesource.com/1061053. Alexis, please check if this still needs mitigation on SwiftShader's side. I'm inclined to label this as garbage-in-garbage-out, unless this is reasonably expected to work in OpenGL ES, or affects security.

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