debian/patches/CVE-2026-6474.patch: guard pg_strftime() callers and ensure
null-terminated output on overflow, plus split timeofday() pg_strftime so
the %Z timezone string is never embedded as a format string in subsequent
snprintf().
debian/patches/CVE-2026-6475.patch: prevent path traversal in pg_rewind
file operations via path_is_safe_for_extraction() helper.
debian/patches/CVE-2026-6477.patch: harden PQfn()/pqFunctionCall3() against
server-controlled buffer overruns in libpq large-object interface.
debian/patches/CVE-2026-6478.patch: add timingsafe_bcmp() helper and apply
to MD5/SCRAM/RADIUS/plain auth-paths to prevent timing-channel leaks.
debian/patches/CVE-2026-6637.patch: switch refint contrib check_foreign_key
to StringInfo and quote_literal_cstr() to prevent SQL injection and stack
buffer overruns.
CVE-2026-6473
CVE-2026-6474
CVE-2026-6475
CVE-2026-6477
CVE-2026-6478
CVE-2026-6637
debian/patches/fix-regress-tzdata-LMT.patch: refresh src/test/regress
expected output for date, timestamptz and horology tests so that they
match the LMT abbreviation emitted by current tzdata for pre-1883
America/Los_Angeles dates.