CVE-2017-10911, XSA-216: blkif responses leak backend stack data Reference CVE-2017-10912, XSA-217: page transfer may allow PV guest to elevate privilege Reference CVE-2017-10913, CVE-2017-10914, XSA-218: Races in the grant table unmap code Reference CVE-2017-10915, XSA-219: x86: insufficient reference counts during shadow emulation Reference CVE-2017-10916, XSA-220: x86: PKRU and BND* leakage between vCPU-s Reference CVE-2017-10917, XSA-221: NULL pointer deref in event channel poll Reference CVE-2017-10918, XSA-222: stale P2M mappings due to insufficient error checking Reference CVE-2017-10919, XSA-223: ARM guest disabling interrupt may crash Xen Reference CVE-2017-10920, CVE-2017-10921, CVE-2017-10922, XSA-224: grant table operations mishandle reference counts Reference CVE-2017-10923, XSA-225: arm: vgic: Out-of-bound access when sending SGIs Reference