Bug 2130278 (CVE-2022-3344) - CVE-2022-3344 kernel: KVM: SVM: nested shutdown interception could lead to host crash
Summary: CVE-2022-3344 kernel: KVM: SVM: nested shutdown interception could lead to ho...
Keywords:
Status: NEW
Alias: CVE-2022-3344
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Depends On: 2134352 2134353 2134351 2134354 2136837
Blocks: 2130248
TreeView+ depends on / blocked
 
Reported: 2022-09-27 16:56 UTC by Mauro Matteo Cascella
Modified: 2023-01-19 23:00 UTC (History)
36 users (show)

Fixed In Version: kernel 6.1-rc7
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the KVM's AMD nested virtualization (SVM). A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest (L2), possibly leading to a page fault and kernel panic in the host (L0).
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Description Mauro Matteo Cascella 2022-09-27 16:56:04 UTC 
A flaw was found in the KVM's AMD nested virtualization (SVM). A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest (L2), possibly leading to a page fault and kernel panic in the host (L0).
Comment 3 Mauro Matteo Cascella 2022-10-21 15:07:41 UTC 
Upstream patch:
https://lore.kernel.org/lkml/20221020093055.224317-5-mlevitsk@redhat.com/T/
Comment 4 Mauro Matteo Cascella 2022-10-21 15:08:12 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2136837]
Comment 6 Mauro Matteo Cascella 2023-01-11 11:24:11 UTC 
Upstream commit:
https://github.com/torvalds/linux/commit/ed129ec9057f89d615ba0c81a4984a90345a1684
Comment 7 Justin M. Forbes 2023-01-19 23:00:26 UTC 
This was fixed for Fedora with the 6.0.11 stable kernel updates.
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