Public bug reported:
As reported by Alex Thorlton <[email protected]>:
This mainline commit (part of the fix for CVE-2019-3016) was
accidentally omitted from Bionic when the rest of that fix was applied
in 4.15.0-106.107:
b043138246a4 x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed
That commit (actually its 4.19-stable backport) further requires the
following (which all require light backports too):
858a43aae236 KVM: X86: use paravirtualized TLB Shootdown
fa55eedd6328 KVM: X86: Add KVM_VCPU_PREEMPTED
f38a7b75267f KVM: X86: support paravirtualized help for TLB shootdowns
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Kamal Mostafa (kamalmostafa)
Status: In Progress
** Affects: linux (Ubuntu Bionic)
Importance: Undecided
Assignee: Kamal Mostafa (kamalmostafa)
Status: In Progress
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Kamal Mostafa (kamalmostafa)
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https://bugs.launchpad.net/bugs/1885184
Title:
Bionic missing KVM_VCPU_FLUSH_TLB commit for CVE-2019-3016
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