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CVE-2026-31628

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CVE-2026-31628

Published: Apr 24, 2026

Modified: May 23, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 - < ed7a3a246309ccc807238f1b4f159ee6d37ff9c4
affected
f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 - < 0548529af20e68c6552817834b766646dd3bd7a7
affected
f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 - < 1272cfedf4cd1019ddf583917a99b62f2d3645bb
affected
f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 - < 91f02726b2203b71545713ecb7fb006e60a2d66f
affected
f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 - < b731aca06387b195058a9f6449a03b62efa1bd10

+10 more versions

Linux

Linux

affected
4.14
unaffected
0 - < 4.14
unaffected
5.10.253 - <= 5.10.*
unaffected
5.15.203 - <= 5.15.*
unaffected
6.1.169 - <= 6.1.*

+6 more versions

References

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