{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68313", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T14:48:05.295Z", "datePublished": "2025-12-16T15:39:43.972Z", "dateUpdated": "2025-12-16T15:39:43.972Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-16T15:39:43.972Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Add RDSEED fix for Zen5\n\nThere's an issue with RDSEED's 16-bit and 32-bit register output\nvariants on Zen5 which return a random value of 0 \"at a rate inconsistent\nwith randomness while incorrectly signaling success (CF=1)\". Search the\nweb for AMD-SB-7055 for more detail.\n\nAdd a fix glue which checks microcode revisions.\n\n [ bp: Add microcode revisions checking, rewrite. ]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kernel/cpu/amd.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "e980de2ff109dacb6d9d3a77f01b27c467115ecb", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "36ff93e66d0efc46e39fab536a9feec968daa766", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "607b9fb2ce248cc5b633c5949e0153838992c152", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kernel/cpu/amd.c"], "versions": [{"version": "6.12.58", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.8", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.58"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.17.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e980de2ff109dacb6d9d3a77f01b27c467115ecb"}, {"url": "https://git.kernel.org/stable/c/36ff93e66d0efc46e39fab536a9feec968daa766"}, {"url": "https://git.kernel.org/stable/c/607b9fb2ce248cc5b633c5949e0153838992c152"}], "title": "x86/CPU/AMD: Add RDSEED fix for Zen5", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Add RDSEED fix for Zen5\n\nThere's an issue with RDSEED's 16-bit and 32-bit register output\nvariants on Zen5 which return a random value of 0 \"at a rate inconsistent\nwith randomness while incorrectly signaling success (CF=1)\". Search the\nweb for AMD-SB-7055 for more detail.\n\nAdd a fix glue which checks microcode revisions.\n\n [ bp: Add microcode revisions checking, rewrite. ]"}], "id": "CVE-2025-68313", "lastModified": "2025-12-16T16:16:10.883", "metrics": {}, "published": "2025-12-16T16:16:10.883", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/36ff93e66d0efc46e39fab536a9feec968daa766"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/607b9fb2ce248cc5b633c5949e0153838992c152"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e980de2ff109dacb6d9d3a77f01b27c467115ecb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}