CVE-2024-31146 — PCI device pass-through with shared resources

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Xen / Xen	unknown consult Xen advisory XSA-461

CWE

No CWE identifiers supplied.

References

https://xenbits.xenproject.org/xsa/advisory-461.html

ADP enrichment

CVE

No English description supplied.

http://xenbits.xen.org/xsa/advisory-461.html
http://www.openwall.com/lists/oss-security/2024/08/14/3

CISA-ADP

No English description supplied.

No references supplied.