Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.
CVSS Details
- CVSS 3.1 Base Score: 4.6
- CVSS 3.1 Vector: (CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xen | Mar 26, 2024 | Jan 25, 2022 |
| Debian | — | Upgrade xen | Nov 4, 2022 | Jan 25, 2022 |
| Gentoo Linux | — | Upgrade app-emulation/xen.Upgrade app-emulation/xen-tools. | Aug 16, 2022 | Jan 25, 2022 |
| Suse | — | Upgrade xen-toolsUpgrade xenUpgrade xen-kmp-paeUpgrade xen-develUpgrade xen-libsUpgrade xen-doc-htmlUpgrade xen-kmp-defaultUpgrade xen-libs-32bitUpgrade xen-tools-domUUpgrade xen-tools-xendomains-wait-disk | Feb 5, 2022 | Jan 25, 2022 |
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