SECURITY UPDATE: remote code execution via state corruption after a
bailout and via stale request-global state
debian/patches/CVE-2026-109618-CVE-2026-109619.patch: PHP security
team's minimal mitigation for EOL branches: report allocator
overflow and out-of-memory errors via zend_mm_safe_error_ex() and
_exit() instead of bailing out, reset executor, SAPI and request
globals on shutdown, add overflow checks to the CONCAT and
FAST_CONCAT handlers, keep only the Content-Disposition and
Content-Type multipart headers and ignore duplicates, and disable
the session upload progress callback, in Zend/, main/,
ext/session/session.c