Wang Xuerui

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** An issue in the LoongArch component of the Linux kernel can lead to a null pointer dereference, potentially allowing an attacker to cause a denial of service. The problem occurs when `DEFERRED STRUCT PAGE INIT` is enabled; specifically, an early call to `memblock reserve()` in `memblock init()` sets the node ID to `MAX NUMNODES`. This results in a null dereference of `NODE DATA(nid)` within the call chain `reserve bootmem region()` -> `init reserved page()`, leading to a kernel panic. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.