CVE-2026-93154
RDMA/irdma: Add refcounting to user ring MRs
HIGH
7.8
CVSS Score
Published: September 17, 2026 at 04:11 PM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel
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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
5.14b48c24c2d710cf34810c555dcef883a3d35a9c08
Vendor states this is fixed in 07974c267f603a76aead348bca97deee95efdcc9 (fixed)
Vendor states this is fixed in a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b (fixed)
Vendor states this is fixed in f67d8a08f60c9217df6d40da56422d2049f5e334 (fixed)
Vendor states this is fixed in 5.14 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (3)
CVSS
7.8HIGHLinux
Vector?
Quick Info
StatusRECEIVED
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