ati_2d_blt in hw/display/ati_2d.c in QEMU 4.2.1 can encounter an outside-limits situation in a calculation. A guest can crash the QEMU process.Referenceshttps://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg05018.htmlhttp://www.openwall.com/lists/oss-security/2020/11/03/2https://security.netapp.com/advisory/ntap-20201202-0002/
