In the Linux kernel, the following vulnerability has been resolved: LoongArch: Make cpumask_of_node() robust against NUMA_NO_NODE The arch definition of cpumask_of_node() cannot handle NUMA_NO_NODE - which is a valid index - so add a check for this.

A flaw was found in the Linux kernel, specifically within the `cpumask_of_node()` function on the LoongArch architecture. This function did not properly handle the `NUMA_NO_NODE` index, which is a valid input. This oversight could lead to unexpected system behavior or instability, potentially impacting resource management within the kernel.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-43212 https://nvd.nist.gov/vuln/detail/CVE-2026-43212 https://lore.kernel.org/linux-cve-announce/2026050649-CVE-2026-43212-5cc5@gregkh/T