brucedawson @ could you please look into this.please feel free to re-assigned back if needed. thanks in advance !

This is being investigated under this bug:

https://bugs.chromium.org/p/pdfium/issues/detail?id=624

I don't think I can close this bug as a duplicate of that bug because they are in different projects. So, I'm inclined to leave this one open for now in order to represent the Chromium side of the issue.

Note that while this should be addressed it is not actually a critical assert.

This is fixed.

The following revision should have referred to this bug but I forgot to link it:
  https://pdfium.googlesource.com/pdfium.git/+/fcb1728c35f97a67fa0297f12bb13d3cafb01fe1

commit fcb1728c35f97a67fa0297f12bb13d3cafb01fe1
Author: brucedawson <brucedawson@chromium.org>
Date: Tue Nov 01 18:22:25 2016

Fix founding difference in pdfium_test on AdobeCMYK_to_sRGB

An optimization to speed up float-to-int rounding caused a different
result for one input value. This tweaks the conversion constant so
that the results are identical across the entire valid range, and
adds a test that checks the part of the range that is most sensitive
to errors.

BUG=pdfium:624

Review-Url: https://codereview.chromium.org/2466203002

[modify] https://crrev.com/fcb1728c35f97a67fa0297f12bb13d3cafb01fe1/core/fxcodec/codec/fx_codec_icc.cpp
[modify] https://crrev.com/fcb1728c35f97a67fa0297f12bb13d3cafb01fe1/core/fxcodec/codec/fx_codec_jpx_unittest.cpp

Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

ClusterFuzz has detected this issue as fixed in range 455091:455226.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4950998352396288

Fuzzer: libfuzzer_pdfium_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: ASSERT
Crash Address: 
Crash State:
  c1 == FXSYS_round(c * 255)
  AdobeCMYK_to_sRGB
  CPDF_DeviceCS::GetRGB
  
Sanitizer: address (ASAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan_debug&range=402692:402822
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan_debug&range=455091:455226

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv94kiox0g0cftzidtlQp0L3pnuZ-uu8_rI-jxR-W2olNazVNkiNrKJlKHImr12IThJrWpYKz2lAuJIHSyBK840In8yVN2sTwg6_aPzzOrwKJp7k7T_DbH6wOMfIQ-J8u_I1D5NYkwAo9rLFgdaZJbMWiBYspG8llR49b3eaVVXi-gaMsn8CU9A6oVXMWIg3Om9noYCH27nIFoG3qm6hMfGfakb3P7vZHNYOe8MxCWuyLnv-3r_Dsu2iNzUBvBw4PVAGbU3ZUlbSZ5xPcE6gElQRhN7_xGT6RrrMb_QOW18XQvgJgikZVFqwyxegxMcaXi7wXQ4cbyKVRRNYPeU6kHo6C7QDiFgzT4NUNwbMODQcWcQDVIz8?testcase_id=4950998352396288


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

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

 Issue 699459  has been merged into this issue.

 Issue 699339  has been merged into this issue.

ClusterFuzz testcase 5950095163129856 is verified as fixed, so closing issue as verified.

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