Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
github.com/libexpat/libexpat/pull/550
lists.debian.org/debian-lts-announce/2022/03/msg00007.html
security.gentoo.org/glsa/202209-24
security.netapp.com/advisory/ntap-20220217-0001/
www.debian.org/security/2022/dsa-5073
www.oracle.com/security-alerts/cpuapr2022.html
www.tenable.com/security/tns-2022-05