Maintainers for qemu are Debian QEMU Team <pkg-qemu-devel@lists.alioth.debian.org>.
You may want to refer to the following packages that are part of the same source: qemu-block-extra, qemu-guest-agent, qemu-kvm, qemu-system, qemu-system-arm, qemu-system-common, qemu-system-data, qemu-system-gui, qemu-system-mips, qemu-system-misc, qemu-system-modules-opengl, qemu-system-modules-spice, qemu-system-ppc, qemu-system-sparc, qemu-system-x86, qemu-system-xen, qemu-user, qemu-user-binfmt, qemu-user-static, qemu-utils.
You might like to refer to the qemu package page, to the Package Tracking System, or to the source package src:qemu's bug page.
If you find a bug not listed here, please report it.