{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-31628", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.124Z", "datePublished": "2026-04-24T14:42:49.181Z", "dateUpdated": "2026-10-15T01:17:19.544Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:43:19.462Z" }, "descriptions": [ { "lang": "en", "value": "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." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/x86/include/asm/msr-index.h", "arch/x86/kernel/cpu/amd.c" ], "versions": [ { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "ed7a3a246309ccc807238f1b4f159ee6d37ff9c4", "status": "affected", "versionType": "git" }, { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "0548529af20e68c6552817834b766646dd3bd7a7", "status": "affected", "versionType": "git" }, { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "1272cfedf4cd1019ddf583917a99b62f2d3645bb", "status": "affected", "versionType": "git" }, { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "91f02726b2203b71545713ecb7fb006e60a2d66f", "status": "affected", "versionType": "git" }, { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "b731aca06387b195058a9f6449a03b62efa1bd10", "status": "affected", "versionType": "git" }, { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "ad17f07e95e6e8505e2153e5b391f0d27eacce25", "status": "affected", "versionType": "git" }, { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "e6af5286efe5a56128b34032572c9ce9ebeccda3", "status": "affected", "versionType": "git" }, { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "546785c719418c6166834a47e372a88f5f7ae893", "status": "affected", "versionType": "git" }, { "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "e55d98e7756135f32150b9b8f75d580d0d4b2dd3", "status": "affected", "versionType": "git" }, { "version": "5abd1583e06b3963e5c9d915760367de86808b78", "status": "affected", "versionType": "git" }, { "version": "4ba461d426490b6ed7e8298c4d3b7a13aa5d2686", "status": "affected", "versionType": "git" }, { "version": "5a63725cd18fcee2af6ec46ccb856b64ad3077b4", "status": "affected", "versionType": "git" }, { "version": "3.16.58", "lessThan": "3.17", "status": "affected", "versionType": "semver" }, { "version": "4.4.144", "lessThan": "4.5", "status": "affected", "versionType": "semver" }, { "version": "4.9.102", "lessThan": "4.10", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/x86/include/asm/msr-index.h", "arch/x86/kernel/cpu/amd.c" ], "versions": [ { "version": "4.14", "status": "affected" }, { "version": "0", "lessThan": "4.14", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.169", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.135", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.82", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.23", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19.13", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.1", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.10.253" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.15.203" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.1.169" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.6.135" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.12.82" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.18.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.19.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", 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}, { "url": "https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25" }, { "url": "https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3" }, { "url": "https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893" }, { "url": "https://git.kernel.org/stable/c/e55d98e7756135f32150b9b8f75d580d0d4b2dd3" } ], "title": "x86/CPU: Fix FPDSS on Zen1", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:17:19.544Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.5", "lessThan": "*", 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