CVE-2026-93154NVD

Vulnerability Summary

In the Linux kernel, the following vulnerability has been resolved:

RDMA/irdma: Add refcounting to user ring MRs

Prevent userspace from deregistering the MRs that back QP/CQ/SRQ rings
by bumping the MR's refcount upon association.

Severity Level

HIGH(7.8)

Published Date

Sep 17, 2026

Last Modified

Sep 18, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.16%Probability

Root Weakness (CWE)

N/A

CVSS v3.1 Base Metrics — Score 7.8 (HIGH)

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Linux Linux >= b48c24c2d710cf34810c555dcef883a3d35a9c08 and < 07974c267f603a76aead348bca97deee95efdcc9
Linux Linux >= b48c24c2d710cf34810c555dcef883a3d35a9c08 and < a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b
Linux Linux >= b48c24c2d710cf34810c555dcef883a3d35a9c08 and < f67d8a08f60c9217df6d40da56422d2049f5e334
Linux Linux >= 5.14

Patched Versions

Linux Linux 07974c267f603a76aead348bca97deee95efdcc9
Linux Linux a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b
Linux Linux f67d8a08f60c9217df6d40da56422d2049f5e334

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