We have backported the following two patches in Jammy and waiting for review:
18164f66e6c5 x86/fpu: Allow caller to constrain xfeatures when copying
to uabi buffer
8647c52e9504 KVM: x86: Constrain guest-supported xfeatures only at
KVM_GET_XSAVE{2}
The fix will also apply to Focal-HWE kernel.
** Changed in: linux (Ubuntu Jammy)
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/2032164
Title:
A general-proteciton exception during guest migration to unsupported
PKRU machine
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