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help / color / mirror / Atom feedFrom: Peter Eisentraut <peter@eisentraut.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Don't cast off_t to 32-bit type for output, bug fix
Date: Wed, 01 Jul 2026 08:00:21 +0000
Message-ID: <E1weprp-000sxO-1J@gemulon.postgresql.org> (raw)
Don't cast off_t to 32-bit type for output, bug fix
off_t is most likely a 64-bit integer, so casting it to a 32-bit type
for output could lose data. There are more issues like this in the
tree, but this is an instance where this could actually happen in
practice, since base backups are routinely larger than 4 GB. So this
is separated out as a bug fix.
Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://www.postgresql.org/message-id/flat/20ce62fa-47fc-457b-b504-12f3c1651726%40eisentraut.org
Branch
------
REL_15_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/c754d9311509e3d3d2f22d264151e040e7a2d832
Modified Files
--------------
src/backend/backup/basebackup_server.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
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To: pgsql-committers@postgresql.org
Cc: peter@eisentraut.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Don't cast off_t to 32-bit type for output, bug fix
In-Reply-To: <E1weprp-000sxO-1J@gemulon.postgresql.org>
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