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https://issues.apache.org/jira/browse/AVRO-4248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18075546#comment-18075546
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Andrew Peter Marlow edited comment on AVRO-4248 at 4/22/26 7:40 PM:
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This looks potentially serious. Have you been able to get any idea on the kind
of impact it might have? A standalone program that crashes due to the error
would be nice to see, otherwise it might get dismissed as something that is
only seen when the sanitizer is used.
was (Author: JIRAUSER298582):
This looks potentially serious. Have you been able to get any idea on the kind
of impact it might have? A standalone program that crashes due to the error
would be nice to see, otherwise it get get dismissed as something that is only
seen when the sanitizer is used.
> ASAN misaligned address in BufferDetail.hh
> ------------------------------------------
>
> Key: AVRO-4248
> URL: https://issues.apache.org/jira/browse/AVRO-4248
> Project: Apache Avro
> Issue Type: Bug
> Components: c++
> Affects Versions: 1.8.0
> Reporter: Andrew Pilloud
> Priority: Trivial
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We're on a really old version of Avro, but this appears to still exist at
> head.
> avro/api/buffer/detail/BufferDetail.hh:355:13: runtime error: store to
> misaligned address 0x7d5a4dde650f for type 'long', which requires 8 byte
> alignment
> 0x7d5a4dde650f: note: pointer points here
> 72 22 00 04 ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab
> ab ab ab ab ab ab ab ab
> ^
> #0 0x7f4b2c7b93bf in void avro::detail::BufferImpl::writeTo<long>(long,
> boost::integral_constant<bool, true> const&)
> avro/api/buffer/detail/BufferDetail.hh:355:78
> #1 0x7f4b2c7b40d1 in writeTo<long> avro/api/buffer/Buffer.hh:141:17
> #2 0x7f4b2c7b40d1 in writeValue avro/api/Writer.hh:90:17
> #3 0x7f4b2c7b40d1 in writeDouble avro/api/Serializer.hh:71:17
> #4 0x7f4b2c7b40d1 in void
> TestSchema::writeEncoding<avro::Serializer<avro::WriterImpl<avro::NullValidator>>>(avro::Serializer<avro::WriterImpl<avro::NullValidator>>&,
> int) third_party/avro/test/unittest.cc:245:11
> #5 0x7f4b2c79e8d9 in TestSchema::printEncoding()
> avro/test/unittest.cc:278:9
> #6 0x7f4b2c73637c in TestSchema::test() avro/test/unittest.cc:545:9
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