| From: | Daniel Gustafsson <dgustafsson(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Fix integer underflow in shared memory debugging |
| Date: | 2024-02-29 11:41:51 |
| Message-ID: | E1rfenP-001Nr0-3y@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Fix integer underflow in shared memory debugging
dsa_dump would print a large negative number instead of zero for
segment bin 0. Fix by explicitly checking for underflow and add
special case for bin 0. Backpatch to all supported versions.
Author: Ian Ilyasov <ianilyasov(at)outlook(dot)com>
Reviewed-by: Robert Haas <robertmhaas(at)gmail(dot)com>
Discussion: https://postgr.es/m/GV1P251MB1004E0D09D117D3CECF9256ECD502@GV1P251MB1004.EURP251.PROD.OUTLOOK.COM
Backpatch-through: v12
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/6fd144e3a9664ea545d10008c48dceb6c4e9d38a
Modified Files
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src/backend/utils/mmgr/dsa.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
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