CVE-2025-39903

A flaw was found in the linux kernel of_numa subsystem fails to properly initialize memory‑only NUMA nodes (i.e., nodes without CPUs). When such nodes remain uninitialized, a subsequent call to free_area_init() may access NODE_DATA() for those nodes and trigger a kernel panic due to a NULL pointer dereference. This can lead to a denial of service (system crash) during boot on affected kernels.

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 don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.