PT-2025-49671 · Linux · Linux Kernel

CVE-2023-53811

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Published

2023-02-07

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Updated

2026-02-24

CVSS v2.0

6.0

Medium

VectorAV:L/AC:H/Au:S/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The irdma driver within the Linux kernel could use a number of MSIX vectors exceeding the number of online CPUs plus one. This resulted in a kernel warning when attempting to update the affinity hint with a CPU mask greater than the maximum CPU IDs. The issue was addressed by capping the MSIX vectors to the number of online CPUs plus one.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Allocation of Resources Without Limits

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Weakness Enumeration

Related Identifiers

BDU:2026-10260
CVE-2023-53811
RHSA-2023:2458
RHSA-2023:2951
SUSE-SU-2026:0263-1
SUSE-SU-2026:0317-1
SUSE-SU-2026:0411-1
SUSE-SU-2026:0617-1

Affected Products

Linux Kernel