CVE-2022-48797

A vulnerability was found in the Linux kernel's memory management system, where the change_pte_range() function improperly attempts to NUMA-migrate Copy-On-Write pages with existing references. This occurs due to an incorrect check using page_mapcount, leading to potential corruption when NUMA balancing is enabled without process affinity. The impact of this vulnerability can result in data corruption during DMA operations, affecting system reliability.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.