VulnerabilityModified
CVE-2026-31628
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.
MEDIUM 5.5EPSS 0.13%
Does this matter?
Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7Patch
- https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bbPatch
- https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893Patch
- https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66fPatch
- https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25Patch
- https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10Patch
- https://git.kernel.org/stable/c/e55d98e7756135f32150b9b8f75d580d0d4b2dd3Patch
- https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3Patch
- https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4Patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.