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HIGH

xen: Missing NUMA node parameter verification (XSA-231)

Published Sep 12, 2017

Description

A parameter verification issue was discovered in Xen through 4.9.x. The function `alloc_heap_pages` allows callers to specify the first NUMA node that should be used for allocations through the `memflags` parameter; the node is extracted using the `MEMF_get_node` macro. While the function checks to see if the special constant `NUMA_NO_NODE` is specified, it otherwise does not handle the case where `node >= MAX_NUMNODES`. This allows an out-of-bounds access to an internal array.

Affected products

Remediation

No remediation recorded yet.

Metrics

References (10)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 12, 2017
Updated Aug 5, 2024
Reserved Sep 12, 2017
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Important
Public date Sep 12, 2017