Sugoi@, can you please look into this change (https://chromium.googlesource.com/chromium/src/+/b6e61022496fde12591293b56308a9b26ed6009e) if possible?

Thank you!

The following revision refers to this bug:
  https://swiftshader.googlesource.com/SwiftShader.git/+/ec5da193b1c29dc8bee19dcc8fe297901ff74911

commit ec5da193b1c29dc8bee19dcc8fe297901ff74911
Author: Alexis Hetu <sugoi@google.com>
Date: Fri Oct 06 19:12:10 2017

Do not assign a location to uniform block members

Uniform block members do not get a uniform location, since they
cannot be set (or get) through regular glUniform* functions. These
are instead always set using uniform buffers.

 Bug chromium:763675 , chromium:763698 , chromium:771639 

Change-Id: Icf65eba3faab420c63f70af66f828a786e3fc446
Reviewed-on: https://swiftshader-review.googlesource.com/13068
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

[modify] https://crrev.com/ec5da193b1c29dc8bee19dcc8fe297901ff74911/src/OpenGL/libGLESv2/Program.cpp
[modify] https://crrev.com/ec5da193b1c29dc8bee19dcc8fe297901ff74911/src/OpenGL/libGLESv2/Program.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f0794182a95e64e07c4d351ff51543aa1ad4722a

commit f0794182a95e64e07c4d351ff51543aa1ad4722a
Author: Alexis Hetu <sugoi@google.com>
Date: Fri Oct 06 21:21:18 2017

Roll SwiftShader 9d56da2..ec5da19

https://swiftshader.googlesource.com/SwiftShader.git/+log/9d56da2..ec5da19

BUG= chromium:763675 , chromium:763698 , chromium:771639 

TBR=kbr@chromium.org

TEST=bots

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel,linux_chromium_cfi_rel_ng;master.tryserver.chromium.android:android_optional_gpu_tests_rel

Change-Id: If9a21ac28f65767880b09455f67f3364750dc2d3
Reviewed-on: https://chromium-review.googlesource.com/705914
Commit-Queue: Alexis Hétu <sugoi@chromium.org>
Reviewed-by: Alexis Hétu <sugoi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#507181}
[modify] https://crrev.com/f0794182a95e64e07c4d351ff51543aa1ad4722a/DEPS

ClusterFuzz has detected this issue as fixed in range 507143:507182.

Detailed report: https://clusterfuzz.com/testcase?key=5447031043915776

Fuzzer: inferno_twister_c
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x00000004
Crash State:
  NULL
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=500358:500415
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=507143:507182

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5447031043915776

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.

ClusterFuzz testcase 5447031043915776 is verified as fixed, so closing issue as verified.

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