QEMU: off-by-one error in mode_sense_page() in hw/scsi/scsi-disk.c

An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in modesensepage if the 'page' argument was set to MODEPAGEALLS 0x3f. A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service conditio...