Automatically applying components based on crash stacktrace and information from OWNERS files.

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Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/a3d605e38f9387bbab6c4b30ab35926e6da0ace4 ([Zucchini] Add Win32 PE Disassembler Fuzzer).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4af21b941d3394f058b86eaaf16b14c281911c62

commit 4af21b941d3394f058b86eaaf16b14c281911c62
Author: Calder Kitagawa <ckitagawa@google.com>
Date: Mon Apr 09 14:49:56 2018

[Zucchini]: Fix fuzzer CHECK error

ClusterFuzz found an issue with the DCHECK for "hi <= image.size()" in
rel32_utils.cc. This turned out to be a lack of undestanding on my part
that the image gets shruken to the understood region on parsing in
Win32 PE disassembler. As a result, we should be using this shruken
image's size rather than the original image size when invoking the
family of MakeRead functions.

Bug:  830173 
Change-Id: I957990ed0dacb38db4ce85df10a1ffe988e8cc2f
Reviewed-on: https://chromium-review.googlesource.com/1002877
Commit-Queue: Calder Kitagawa <ckitagawa@google.com>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#549173}
[modify] https://crrev.com/4af21b941d3394f058b86eaaf16b14c281911c62/components/zucchini/disassembler_win32_fuzzer.cc

Should be fixed. Will wait a day or two before marking verified to see if ClusterFuzz triggers it again.

ClusterFuzz has detected this issue as fixed in range 549171:549175.

Detailed report: https://clusterfuzz.com/testcase?key=6621350199033856

Fuzzer: libFuzzer_zucchini_disassembler_win32_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  hi <= image.size() in rel32_utils.cc
  zucchini::Rel32ReaderX86::Rel32ReaderX86
  zucchini::DisassemblerWin32<zucchini::Win32X86Traits>::MakeReadRel32
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=548881:548907
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=549171:549175

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6621350199033856

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 6621350199033856 is verified as fixed, so closing issue as verified.

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