FKIE_CVE-2026-31628

Vulnerability from fkie_nvd - Published: 2026-04-24 15:16 - Updated: 2026-04-24 17:51
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU: Fix FPDSS on Zen1\n\nZen1\u0027s 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."
    }
  ],
  "id": "CVE-2026-31628",
  "lastModified": "2026-04-24T17:51:40.810",
  "metrics": {},
  "published": "2026-04-24T15:16:42.103",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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