CVE-2024-31143 — double unlock in x86 guest IRQ handling

Description (CNA)

An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. Unlike for MSI-X, the setting up of these consecutive vectors needs to happen all in one go. In this handling an error path could be taken in different situations, with or without a particular lock held. This error path wrongly releases the lock even when it is not currently held.

Affected (CNA)

Vendor / product	Versions
Xen / Xen	unknown consult Xen advisory XSA-458

CWE

No CWE identifiers supplied.

References

https://xenbits.xenproject.org/xsa/advisory-458.html

ADP enrichment

CVE

No English description supplied.

https://xenbits.xenproject.org/xsa/advisory-458.html
http://www.openwall.com/lists/oss-security/2024/07/16/3
http://xenbits.xen.org/xsa/advisory-458.html

CISA-ADP

No English description supplied.

No references supplied.