CVE-2023-52450 Information

Description

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()

Reference

https://git.kernel.org/stable/c/bf1bf09e6b599758851457f3999779622a48d015 https://git.kernel.org/stable/c/3d6f4a78b104c65e4256c3776c9949f49a1b459e https://git.kernel.org/stable/c/1692cf434ba13ee212495b5af795b6a07e986ce4