{"api_version":"1","generated_at":"2026-04-25T12:38:17+00:00","cve":"CVE-2026-31628","urls":{"html":"https://cve.report/CVE-2026-31628","api":"https://cve.report/api/cve/CVE-2026-31628.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-31628","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31628"},"summary":{"title":"x86/CPU: Fix FPDSS on Zen1","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU: Fix FPDSS on Zen1\n\nZen1's hardware divider can leave, under certain circumstances, partial\nresults from previous operations.  Those results can be leaked by\nanother, attacker thread.\n\nFix that with a chicken bit.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-24 15:16:42","updated_at":"2026-04-24 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the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU: Fix FPDSS on Zen1\n\nZen1's hardware divider can leave, under certain circumstances, partial\nresults from previous operations.  Those results can be leaked by\nanother, attacker thread.\n\nFix that with a chicken bit."}],"providerMetadata":{"dateUpdated":"2026-04-24T14:42:49.181Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4"},{"url":"https://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7"},{"url":"https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bb"},{"url":"https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66f"},{"url":"https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10"},{"url":"https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25"},{"url":"https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3"},{"url":"https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893"}],"title":"x86/CPU: Fix FPDSS on Zen1","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-31628","datePublished":"2026-04-24T14:42:49.181Z","dateReserved":"2026-03-09T15:48:24.124Z","dateUpdated":"2026-04-24T14:42:49.181Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-24 15:16:42","lastModifiedDate":"2026-04-24 17:51:40","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"31628","Ordinal":"1","Title":"x86/CPU: Fix FPDSS on Zen1","CVE":"CVE-2026-31628","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"31628","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU: Fix FPDSS on Zen1\n\nZen1's hardware divider can leave, under certain circumstances, partial\nresults from previous operations.  Those results can be leaked by\nanother, attacker thread.\n\nFix that with a chicken bit.","Type":"Description","Title":"x86/CPU: Fix FPDSS on Zen1"}]}}}