Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: XEN
Published: 2022-07-05T12:50:10
Updated: 2024-08-03T08:09:22.669Z
Reserved: 2022-06-15T00:00:00
Link: CVE-2022-33744
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2022-07-05T13:15:08.653
Modified: 2022-10-29T02:50:22.890
Link: CVE-2022-33744
Redhat
No data.