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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2016-10-17 12:13:16 +0300 |
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| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2016-10-17 12:13:35 +0300 |
| commit | a5f0bd77a2fab60a52dc335a63efc21abc806aa7 (patch) | |
| tree | 637bcc342da1bf8b564f38fd8023ce9869a02ebe /src/backend/utils/adt/ri_triggers.c | |
| parent | db4b54f1550aa830890ce190e5d196de8d17db33 (diff) | |
| download | postgresql-a5f0bd77a2fab60a52dc335a63efc21abc806aa7.tar.gz postgresql-a5f0bd77a2fab60a52dc335a63efc21abc806aa7.zip | |
Fix use-after-free around DISTINCT transition function calls.
Have tuplesort_gettupleslot() copy the contents of its current table slot
as needed. This is based on an approach taken by tuplestore_gettupleslot().
In the future, tuplesort_gettupleslot() may also be taught to avoid copying
the tuple where caller can determine that that is safe (the
tuplestore_gettupleslot() interface already offers this option to callers).
Patch by Peter Geoghegan. Fixes bug #14344, reported by Regina Obe.
Report: <20160929035538.20224.39628@wrigleys.postgresql.org>
Backpatch-through: 9.6
Diffstat (limited to 'src/backend/utils/adt/ri_triggers.c')
0 files changed, 0 insertions, 0 deletions