| From: | David Rowley <drowley(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Avoid integer wraparound when adding new HASH partition |
| Date: | 2026-11-10 22:50:41 |
| Message-ID: | E1xQufp-00000000EPI-0uEA@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Avoid integer wraparound when adding new HASH partition
Specifying an overly large modulus could result in an integer wraparound
while checking for overlapping partitions when adding a new HASH
partition. Upgrade to 64-bit integers to avoid this.
Bug: #19836
Reported-by: Sumedh Pathak <sumedhpathak(at)gmail(dot)com>
Author: David Rowley <dgrowleyml(at)gmail(dot)com>
Discussion: https://postgr.es/m/19836-0754d466a59c7d00@postgresql.org
Backpatch-through: 15
Branch
------
REL_18_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/3fe8f2c35e8aa3786e779cf077ff5415e1fcee9f
Modified Files
--------------
src/backend/partitioning/partbounds.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
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