CVE-2026-31628
N/A
N/A
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < ed7a3a246309ccc807238f1b4f159ee6d37ff9c4 | affected |
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < 0548529af20e68c6552817834b766646dd3bd7a7 | affected |
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < 1272cfedf4cd1019ddf583917a99b62f2d3645bb | affected |
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < 91f02726b2203b71545713ecb7fb006e60a2d66f | affected |
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < b731aca06387b195058a9f6449a03b62efa1bd10 | affected |
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < ad17f07e95e6e8505e2153e5b391f0d27eacce25 | affected |
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < e6af5286efe5a56128b34032572c9ce9ebeccda3 | affected |
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < 546785c719418c6166834a47e372a88f5f7ae893 | affected |
| Linux | Linux | f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 < e55d98e7756135f32150b9b8f75d580d0d4b2dd3 | affected |
| Linux | Linux | 5abd1583e06b3963e5c9d915760367de86808b78 | affected |
| Linux | Linux | 4ba461d426490b6ed7e8298c4d3b7a13aa5d2686 | affected |
| Linux | Linux | 5a63725cd18fcee2af6ec46ccb856b64ad3077b4 | affected |
| Linux | Linux | 3.16.58 < 3.17 | affected |
| Linux | Linux | 4.4.144 < 4.5 | affected |
| Linux | Linux | 4.9.102 < 4.10 | affected |
| Linux | Linux | 4.14 | affected |
| Linux | Linux | 0 < 4.14 | unaffected |
| Linux | Linux | 5.10.253 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.203 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.169 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.135 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.82 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.23 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.13 <= 6.19.* | unaffected |
| Linux | Linux | 7.0.1 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4
- https://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7
- https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bb
- https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66f
- https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10
- https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25
- https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3
- https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893
- https://git.kernel.org/stable/c/e55d98e7756135f32150b9b8f75d580d0d4b2dd3
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