CVE-2024-31146
PCI device pass-through with shared resources
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
When multiple devices share resources and one of them is to be passed through to a guest, security of the entire system and of respective guests individually cannot really be guaranteed without knowing internals of any of the involved guests. Therefore such a configuration cannot really be security-supported, yet making that explicit was so far missing. Resources the sharing of which is known to be problematic include, but are not limited to - - PCI Base Address Registers (BARs) of multiple devices mapping to the same page (4k on x86), - - INTx lines.
| Vendor | xen |
| Product | xen |
| Published | Sep 25, 2024 |
| Last Updated | Sep 25, 2024 |
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Affected Versions
Xen / Xen
All versions affected