CVE-2023-52450

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: perf/x86/intel/uncore: solucione el problema de desreferencia del puntero NULL en upi_fill_topology(). Obtenga la identificación del socket lógico en lugar de la identificación física en discover_upi_topology() para evitar el acceso fuera de límites en 'upi = &tipo->topología[nid][idx];' línea que conduce a la desreferencia del puntero NULL en upi_fill_topology()

A vulnerability was discovered in the Linux kernel in which certain CPU topologies could result in a null pointer dereference, affecting system stability.

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology() Get logical socket id instead of physical id in discover_upi_topology() to avoid out-of-bound access on 'upi = &type->topology[nid][idx];' line that leads to NULL pointer dereference in upi_fill_topology()