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Issue 910883 link

Starred by 1 user
Status: Assigned
Owner:
sugoi@chromium.org
Cc:
kkaluri@chromium.org
capn@chromium.org
sugoi@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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ASSERT: false

Project Member Reported by ClusterFuzz, Dec 1 
Detailed report: https://clusterfuzz.com/testcase?key=5192211672858624

Fuzzer: libFuzzer_swiftshader_vertex_routine_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: ASSERT
Crash Address: 
Crash State:
  false
  glsl::OutputASM::samplerRegister
  glsl::OutputASM::isSamplerRegister
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=521495:521545

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5192211672858624

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

Comment 1 by kkaluri@chromium.org, Dec 12

Cc: sugoi@chromium.org kkaluri@chromium.org
Components: Internals>GPU>SwiftShader
Labels: M-71
Owner: capn@chromium.org
Status: Assigned (was: Untriaged)
Predator has provided 5 possible suspects 

1. Fix D3D8 compilation. by capn@google.com
2. Move draw call early-outs until after validation. by capn@google.com
3. Update to number of allowed shader inputs/outputs for OpenGL ES 3 by sugoi@google.com
4. glGenerateMipmap validation by sugoi@google.com
5. Program related validation by sugoi@google.com

Assigning to capn@ for further triage.

Comment 2 by capn@chromium.org, Dec 16

Cc: -sugoi@chromium.org capn@chromium.org
Owner: sugoi@chromium.org
Might have same root cause as  Issue 861603 .
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