---
id: CVE-2026-93104
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/rvt: Return NULL after port allocation failure

  rvt_alloc_device() deallocates the IB device when its port array cannot
  be allocated but then returns the pointer t…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/rvt: Return NULL after port allocation failure

  rvt_alloc_device() deallocates the IB device when its port array cannot
  be allocated but then returns the pointer t…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <
    b1e1b25723af44328524c7b54433e4bf0ab9930c
  - >-
    Linux >= ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <
    2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f
  - Linux 4.6
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:18:04.740'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93104'
references:
  - url: 'https://git.kernel.org/stable/c/2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b1e1b25723af44328524c7b54433e4bf0ab9930c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.755Z'
epss: 0.00198
epssPercentile: 0.0845
---

## Overview

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

RDMA/rvt: Return NULL after port allocation failure

rvt_alloc_device() deallocates the IB device when its port array cannot
be allocated but then returns the pointer to the released allocation.
Callers treat any non-NULL value as valid and dereference it, resulting
in a use-after-free.

Return NULL immediately after deallocation so callers can propagate the
allocation failure.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.