{"id":"CVE-2021-43056","details":"An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.","modified":"2026-03-15T14:45:13.915862Z","published":"2021-10-28T04:15:08.210Z","related":["ALSA-2022:1988","SUSE-SU-2021:3640-1","SUSE-SU-2021:3641-1","SUSE-SU-2021:3642-1","SUSE-SU-2021:3658-1","SUSE-SU-2021:3675-1","SUSE-SU-2021:3754-1","SUSE-SU-2024:2008-1","SUSE-SU-2024:2010-1","SUSE-SU-2024:2183-1","SUSE-SU-2024:2185-1","SUSE-SU-2024:2189-1","openSUSE-SU-2021:1477-1","openSUSE-SU-2021:3641-1","openSUSE-SU-2021:3675-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AA7EAPPKWG4LMTQQLNNSKATY6ST2KQFE/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBM4FP3IT3JZ2O7EBS7TEOG657N4ZGRE/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRAIS3PG4EV5WFLYESR6FXWM4BJJGWVA/"},{"type":"WEB","url":"https://lore.kernel.org/linuxppc-dev/87pmrtbbdt.fsf%40mpe.ellerman.id.au/T/#u"},{"type":"ADVISORY","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2021/10/28/1"},{"type":"FIX","url":"https://git.kernel.org/linus/cdeb5d7d890e14f3b70e8087e745c4a6a7d9f337"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.2"},{"fixed":"5.4.15"}]},{"events":[{"introduced":"0"},{"last_affected":"33"}]},{"events":[{"introduced":"0"},{"last_affected":"34"}]},{"events":[{"introduced":"0"},{"last_affected":"35"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43056.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}