{"id":"CVE-2026-80921","revision":"b84aca50b3684864987dee1ce7b2faf6","records":[{"revision":"b84aca50b3684864987dee1ce7b2faf6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80921","aliases":[],"title":"KVM: s390: vsie: zero stale crypto bits","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: vsie: zero stale crypto bits\n\nWhen shadowing crypto access bits from a format0 apcb (crycb 0 or 1),\nthe bits 64..255 are unchanged from whatever is in the vsie page in the\ncrycb and thus in the apcb. This gives a nested guest potential access\nto a device no longer available. Zero out the remaining bits.","state":0,"publishedAt":"2026-09-09T16:19:42.335+00:00","modifiedAt":"2026-10-19T08:45:04.791+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/s390/kvm/vsie.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"d110b3297f11ef227098b8a82ade2d5f123b7d2f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"59d51550b5cb916bda037673a721a404b3b47a0d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"f6079dca67eccb5eabef9f72437948c66dc5131f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"087c19cc60a8caa1a08e1e434c8be2caf6c27733\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"7d23489f51109e3ebba5b5db8c5f0185af7b7fdf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"935eeba276012916c76243e5cbb843efd8fdb75d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"d4bcd2df6d0d2af916b4fe1a533958778ea7c45b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"29b4f7bc2991313bd3e6f6fb8fdf1b173f086dd6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6b79de4b056e5a2febc0c61233d8f0ad7868e49c\",\n                            \"lessThan\": \"34d5b5b646c91cfb9338d7a12c955a70ffb8c66b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/s390/kvm/vsie.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.20\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.20\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.269\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.220\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.187\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.156\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.108\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.49\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.13\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.3\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/d110b3297f11ef227098b8a82ade2d5f123b7d2f","https://git.kernel.org/stable/c/59d51550b5cb916bda037673a721a404b3b47a0d","https://git.kernel.org/stable/c/f6079dca67eccb5eabef9f72437948c66dc5131f","https://git.kernel.org/stable/c/087c19cc60a8caa1a08e1e434c8be2caf6c27733","https://git.kernel.org/stable/c/7d23489f51109e3ebba5b5db8c5f0185af7b7fdf","https://git.kernel.org/stable/c/935eeba276012916c76243e5cbb843efd8fdb75d","https://git.kernel.org/stable/c/d4bcd2df6d0d2af916b4fe1a533958778ea7c45b","https://git.kernel.org/stable/c/29b4f7bc2991313bd3e6f6fb8fdf1b173f086dd6","https://git.kernel.org/stable/c/34d5b5b646c91cfb9338d7a12c955a70ffb8c66b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80921","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80921","identifiers":["CVE-2026-80921"]},"retained":false,"historicalAffected":[]}],"coverage":[]}