public inbox for [email protected]
help / color / mirror / Atom feedFrom: Thomas Munro <[email protected]>
To: [email protected]
Subject: pgsql: Code coverage for most pg_mblen* calls.
Date: Mon, 09 Feb 2026 00:07:19 +0000
Message-ID: <[email protected]> (raw)
Code coverage for most pg_mblen* calls.
A security patch changed them today, so close the coverage gap now.
Test that buffer overrun is avoided when pg_mblen*() requires more
than the number of bytes remaining.
This does not cover the calls in dict_thesaurus.c or in dict_synonym.c.
That code is straightforward. To change that code's input, one must
have access to modify installed OS files, so low-privilege users are not
a threat. Testing this would likewise require changing installed
share/postgresql/tsearch_data, which was enough of an obstacle to not
bother.
Security: CVE-2026-2006
Backpatch-through: 14
Co-authored-by: Thomas Munro <[email protected]>
Co-authored-by: Noah Misch <[email protected]>
Reviewed-by: Heikki Linnakangas <[email protected]>
Branch
------
REL_18_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/b0f5d25bc3679afaed69d367c72efd387c763d04
Modified Files
--------------
contrib/pg_trgm/Makefile | 2 +-
contrib/pg_trgm/data/trgm_utf8.data | 50 ++++
contrib/pg_trgm/expected/pg_utf8_trgm.out | 8 +
contrib/pg_trgm/expected/pg_utf8_trgm_1.out | 3 +
contrib/pg_trgm/meson.build | 1 +
contrib/pg_trgm/sql/pg_utf8_trgm.sql | 9 +
src/backend/utils/adt/arrayfuncs.c | 6 +
src/test/regress/expected/encoding.out | 401 ++++++++++++++++++++++++++++
src/test/regress/expected/encoding_1.out | 4 +
src/test/regress/expected/euc_kr.out | 16 ++
src/test/regress/expected/euc_kr_1.out | 6 +
src/test/regress/parallel_schedule | 2 +-
src/test/regress/regress.c | 139 ++++++++++
src/test/regress/sql/encoding.sql | 228 ++++++++++++++++
src/test/regress/sql/euc_kr.sql | 12 +
15 files changed, 885 insertions(+), 2 deletions(-)
view thread (6+ messages) latest in thread
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: [email protected]
Cc: [email protected], [email protected]
Subject: Re: pgsql: Code coverage for most pg_mblen* calls.
In-Reply-To: <[email protected]>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox