CVE-2023-52450

MEDIUM

Linux Kernel 6.2-6.6.13, 6.7.0-6.7.1, 6.8 - NULL Pointer Dereference in UPI Topology Discovery

Title source: llm

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()

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/bf1bf09e6b599758851457f3999779622a48d015

Patch

https://git.kernel.org/stable/c/3d6f4a78b104c65e4256c3776c9949f49a1b459e

Patch

https://git.kernel.org/stable/c/1692cf434ba13ee212495b5af795b6a07e986ce4

Scores

CVSS v3 5.5

EPSS 0.0026

EPSS Percentile 16.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (9)

Linux/Linux < 6.2

Linux/Linux 6.2

Linux/Linux 6.6.14 - 6.6.*

Linux/Linux 6.7.2 - 6.7.*

Linux/Linux 6.8

Linux/Linux f680b6e6062ef3c944ffc966d685f067958fca33 - 1692cf434ba13ee212495b5af795b6a07e986ce4

Linux/Linux f680b6e6062ef3c944ffc966d685f067958fca33 - 3d6f4a78b104c65e4256c3776c9949f49a1b459e

Linux/Linux f680b6e6062ef3c944ffc966d685f067958fca33 - bf1bf09e6b599758851457f3999779622a48d015

linux/linux_kernel 6.2.0 - 6.6.14

Published Feb 22, 2024

Tracked Since Feb 18, 2026