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Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/98d07198bf8ca5d73651c727d229a4468b700d43 (Workaround for Qualcomm driver bug in glReadPixels.).

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The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5bc9e7dd586a2d1d53762c8e091df5a5c820e2b2

commit 5bc9e7dd586a2d1d53762c8e091df5a5c820e2b2
Author: James Darpinian <jdarpinian@chromium.org>
Date: Mon Oct 22 19:45:29 2018

Fix null dereference caught by ClusterFuzz.

In http://crrev.com/c/1279354, I didn't consider that the bound read
framebuffer can be NULL when reading from the default framebuffer.

Bug:  897402 ,  890002 
Change-Id: Id033ee7108d6bdceb9646e3e36595bfe667625a1
Reviewed-on: https://chromium-review.googlesource.com/c/1294401
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: James Darpinian <jdarpinian@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601691}
[modify] https://crrev.com/5bc9e7dd586a2d1d53762c8e091df5a5c820e2b2/gpu/command_buffer/service/gles2_cmd_decoder.cc

Should be fixed.

ClusterFuzz has detected this issue as fixed in range 601676:601698.

Detailed report: https://clusterfuzz.com/testcase?key=5339037244850176

Fuzzer: libFuzzer_gpu_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000064
Crash State:
  gpu::gles2::Framebuffer::GetReadBufferAttachment
  gpu::gles2::Framebuffer::GetReadBufferIsMultisampledTexture
  gpu::gles2::GLES2DecoderImpl::HandleReadPixels
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=601355:601356
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=601676:601698

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5339037244850176

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

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 5339037244850176 is verified as fixed, so closing issue as verified.

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