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| author | David Percy <david.percy@mongodb.com> | 2021-03-08 16:24:44 +0000 |
|---|---|---|
| committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2021-03-08 18:20:07 +0000 |
| commit | cc3c7d3fd8d925fb2899cc22e8b8e648e336a2eb (patch) | |
| tree | 6c95f4f44795a7bb6e245cda865b02ee21e11231 | |
| parent | 2a7183bad6b412fe97f464679b2a49eb46b47eec (diff) | |
| download | mongo-cc3c7d3fd8d925fb2899cc22e8b8e648e336a2eb.tar.gz | |
SERVER-55037 Fix stack-use-after-scope in $derivative
| -rw-r--r-- | src/mongo/db/pipeline/window_function/window_function_exec_derivative.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mongo/db/pipeline/window_function/window_function_exec_derivative.cpp b/src/mongo/db/pipeline/window_function/window_function_exec_derivative.cpp index c960e40054d..3acf9ae7cc2 100644 --- a/src/mongo/db/pipeline/window_function/window_function_exec_derivative.cpp +++ b/src/mongo/db/pipeline/window_function/window_function_exec_derivative.cpp @@ -47,8 +47,8 @@ Value WindowFunctionExecDerivative::getNext() { return kDefault; auto [leftOffset, rightOffset] = *endpoints; - const Document& leftDoc = *(*_iter)[leftOffset]; - const Document& rightDoc = *(*_iter)[rightOffset]; + const Document leftDoc = *(*_iter)[leftOffset]; + const Document rightDoc = *(*_iter)[rightOffset]; // Conceptually, $derivative computes 'rise/run' where 'rise' is dimensionless and 'run' is // a time. The result has dimension 1/time, which doesn't correspond to any BSON type, so |