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Issue metadata

Status: Untriaged
Owner:
Cc:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 1
Type: Bug



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Misaligned-address in vrend_decode_block

Project Member Reported by ClusterFuzz, Oct 30

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5223013728124928

Fuzzer: libFuzzer_chromeos_virgl_fuzzer
Job Type: libfuzzer_ubsan_chromeos
Platform Id: linux

Crash Type: Misaligned-address
Crash Address: 
Crash State:
  vrend_decode_block
  virgl_fuzzer.c
  
Sanitizer: undefined (UBSAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5223013728124928

Issue filed automatically.

See https://chromium.googlesource.com/chromiumos/docs/+/master/fuzzing.md#Reproducing-crashes-from-ClusterFuzz for more information.
 
Project Member

Comment 1 by ClusterFuzz, Oct 30

Cc: davidriley@google.com marcheu@google.com zachr@google.com
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Cc: pwang@chromium.org
Didn't we change the OWNERS file to add pwang@? If not we should
Thanks for pointing this out, I'll take a look today. 
David: I think the issue is that pwang@ is in fact not in the owners file. pwang@ isn't in the link you sent me. Or am I misunderstanding the problem?
I think the problem here is ddmail@google.com is not in the cc list and all
the other email addresses are listed.

On Wed, Oct 31, 2018, 16:47 metzman via monorail <
monorail+v2.2965673606@chromium.org wrote:
Ah. Didn't realize ddmail was your LDAP. Looking into this.
Cc: -metzman@google.com infe...@chromium.org
It looks like our bug filing code limits CCing to 3 email address.

inferno@ Do you think we should get rid of this limit? I don't think there is value in only CCing the first 3 email addresses (maybe if we randomly picked them).
If you need to remove someone to make it work, then you can also remove me.
We can't cc everyone, as a lot of OWNERS files have like more than a dozen owners. E.g. https://cs.chromium.org/chromium/src/content/OWNERS?g=0&l=12, so it feels more like a spam. We can increase limit to 4/5. also, can do the randomized picking of these if needed.
I've changed this code to CC up to 5 people (will pick 5 at random if there are more than 5), so you shouldn't have this problem again.
Owner: pwang@chromium.org
Project Member

Comment 13 by ClusterFuzz, Dec 1

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 5223013728124928 appears to be flaky, updating reproducibility label.
Project Member

Comment 14 by ClusterFuzz, Dec 1

Status: WontFix (was: Untriaged)
ClusterFuzz testcase 5223013728124928 is flaky and no longer crashes, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Labels: -Unreproducible Reproducible
Please ignore the last comment about testcase being unreproducible. 
The testcase is still reproducible. 
This was caused by a bug in ClusterFuzz that has been fixed. 
Sorry again for the inconvenience.
Status: Untriaged (was: WontFix)

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