x86/CPU: Fix FPDSS on Zen1
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bbhttps://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66fhttps://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10https://git.kernel.org/stable/c/e55d98e7756135f32150b9b8f75d580d0d4b2dd3https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4