CVE-2023-34321 — arm32: The cache may not be properly cleaned/invalidated
Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the one…
Published: 2024-01-05 · CVSS: 3.3 · CVSS 3.1
Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the ones during scrubbing) have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the helpers can overflow and would then result to skip the cache cleaning/invalidation. Therefore there is no guarantee when all the writes will reach the memory.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7