pgsql: Ensure cached plans are correctly marked as dependent on role. - Mailing list pgsql-committers

Ensure cached plans are correctly marked as dependent on role.

If a CTE, subquery, sublink, security invoker view, or coercion
projection references a table with row-level security policies, we
neglected to mark the plan as potentially dependent on which role
is executing it.  This could lead to later executions in the same
session returning or hiding rows that should have been hidden or
returned instead.

Reported-by: Wolfgang Walther
Reviewed-by: Noah Misch
Security: CVE-2024-10976
Backpatch-through: 12

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/cd7ab57532bb4fbf2e636b1f7d132e6e2d9ac5fc

Modified Files
--------------
src/backend/executor/functions.c          |   6 ++
src/backend/rewrite/rewriteHandler.c      |  67 ++++++++++++++++++--
src/test/regress/expected/rowsecurity.out | 100 ++++++++++++++++++++++++++++++
src/test/regress/sql/rowsecurity.sql      |  58 +++++++++++++++++
src/tools/pgindent/typedefs.list          |   1 +
5 files changed, 226 insertions(+), 6 deletions(-)