Hello Tim Armstrong,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/10948
to look at the new patch set (#2).
Change subject: IMPALA-5031: Fix undefined behavior: memset NULL
......................................................................
IMPALA-5031: Fix undefined behavior: memset NULL
memset has undefined behavior when its first argument is NULL. The
instance fixed here was found by Clang's undefined behavior
sanitizer.
It was found in the end-to-end tests. The interesting part of the
stack trace is:
/exec/data-source-scan-node.cc:152:10: runtime error: null pointer passed as
argument 1, which is declared to never be null
/usr/include/string.h:62:79: note: nonnull attribute specified here
#0 0x482fd8e in DataSourceScanNode::GetNextInputBatch()
/exec/data-source-scan-node.cc:152:3
#1 0x482fb40 in DataSourceScanNode::Open(RuntimeState*)
/exec/data-source-scan-node.cc:124:10
#2 0x47ef854 in AggregationNode::Open(RuntimeState*)
/exec/aggregation-node.cc:71:49
#3 0x23506a4 in FragmentInstanceState::Open()
/runtime/fragment-instance-state.cc:266:53
#4 0x234b6a8 in FragmentInstanceState::Exec()
/runtime/fragment-instance-state.cc:81:12
#5 0x236ee52 in QueryState::ExecFInstance(FragmentInstanceState*)
/runtime/query-state.cc:401:24
#6 0x237093e in QueryState::StartFInstances()::$_0::operator()() const
/runtime/query-state.cc:341:44
Change-Id: I18fa02dc887a42a94c6f81e4923d17568f2184f2
---
M be/src/exec/data-source-scan-node.cc
A be/src/util/ubsan.h
2 files changed, 36 insertions(+), 1 deletion(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/48/10948/2
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I18fa02dc887a42a94c6f81e4923d17568f2184f2
Gerrit-Change-Number: 10948
Gerrit-PatchSet: 2
Gerrit-Owner: Jim Apple <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
