CVE-2022-33747

Arm: unbounded memory consumption for 2nd-level page tables Certain actions require e.g. removing pages from a guest's P2M (Physical-to-Machine) mapping. When large pages are in use to map guest pages in the 2nd-stage page tables, such a removal operation may incur a memory allocation (to replace a large mapping with individual smaller ones). These memory allocations are taken from the global memory pool. A malicious guest might be able to cause the global memory pool to be exhausted by manipulating its own P2M mappings.

Score
CVSS 3.1 3.8 Low
Status
Modified - security@xen.org
Published
2022-10-11
Last modified
2024-08-03
Weaknesses
CWE-404

Affected products

References

 
 
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