Fix use-after-free bug with AfterTriggersTableData.storeslot AfterTriggerSaveEvent() wrongly allocates the slot in execution-span memory context, whereas the correct thing is to allocate it in a transaction-span context, because that's where the enclosing AfterTriggersTableData instance belongs into.
Backpatch to 12 (the test back to 11, where it works well with no code changes, and it's good to have to confirm that the case was previously well supported); this bug seems introduced by commit ff11e7f4b9ae. Reported-by: Bertrand Drouvot <[email protected]> Author: Amit Langote <[email protected]> Discussion: https://postgr.es/m/[email protected] Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/25936fd46c97039aad042ae8d46917d38d132fe4 Modified Files -------------- src/backend/commands/trigger.c | 52 +++++++++++++++++---------- src/test/regress/expected/triggers.out | 59 ++++++++++++++++++++++++++++++ src/test/regress/sql/triggers.sql | 65 ++++++++++++++++++++++++++++++++++ 3 files changed, 157 insertions(+), 19 deletions(-)
