CVE-2026-31628
x86/CPU: Fix FPDSS on Zen1
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 24, 2026 |
| Last Updated | May 23, 2026 |
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Affected Versions
Linux / Linux
f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < ed7a3a246309ccc807238f1b4f159ee6d37ff9c4 f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < 0548529af20e68c6552817834b766646dd3bd7a7 f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < 1272cfedf4cd1019ddf583917a99b62f2d3645bb f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < 91f02726b2203b71545713ecb7fb006e60a2d66f f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < b731aca06387b195058a9f6449a03b62efa1bd10 f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < ad17f07e95e6e8505e2153e5b391f0d27eacce25 f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < e6af5286efe5a56128b34032572c9ce9ebeccda3 f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < 546785c719418c6166834a47e372a88f5f7ae893 f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < e55d98e7756135f32150b9b8f75d580d0d4b2dd3 5abd1583e06b3963e5c9d915760367de86808b78 4ba461d426490b6ed7e8298c4d3b7a13aa5d2686 5a63725cd18fcee2af6ec46ccb856b64ad3077b4 3.16.58 < 3.17 4.4.144 < 4.5 4.9.102 < 4.10
Linux / Linux
4.14
References
git.kernel.org: https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4 git.kernel.org: https://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7 git.kernel.org: https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bb git.kernel.org: https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66f git.kernel.org: https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10 git.kernel.org: https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25 git.kernel.org: https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3 git.kernel.org: https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893 git.kernel.org: https://git.kernel.org/stable/c/e55d98e7756135f32150b9b8f75d580d0d4b2dd3