5.5

CVE-2023-52450

perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()

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()
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.2.0 < 6.6.14
Linux ≫ Linux Kernel Version >= 6.7.0 < 6.7.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.166
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

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