---
id: CVE-2026-90319
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  rapidio: clear mport->net when rio_add_net() fails

  rio_alloc_net() stores the newly allocated rio_net in mport->net before
  rio_scan_alloc_net() registers the device.

  …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  rapidio: clear mport->net when rio_add_net() fails

  rio_alloc_net() stores the newly allocated rio_net in mport->net before
  rio_scan_alloc_net() registers the device.

  …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 4f3509cfcc02e9d757f2714bb7dbbeec35de6fa7 <
    24f60ebabeb8757cec8ec2f97660d521bc9147ec
  - >-
    Linux >= 181d4daaefb3bceeb2f2635ba9f3781eeda9e550 <
    6a760a53e73064735cdfa9e51c664983a89baf96
  - >-
    Linux >= ad82be4298a89a9ae46f07128bdf3d8614bce745 <
    3f00999e44d9984036a029dbad9d2afe94a674d0
  - >-
    Linux >= e6411c3b9512dba09af7d014d474516828c89706 <
    332591a245de978349a7558f8b20469951bb77cc
  - >-
    Linux >= c332f3e2df0fcae5a45fd55cc18902fb1e4825ca <
    75f0bc167b96bbbef8182b88308c732af82c8d83
  - >-
    Linux >= e842f9a1edf306bf36fe2a4d847a0b0d458770de <
    44a37264b26911e13d0a4f5630751c4157ed0354
  - >-
    Linux >= e842f9a1edf306bf36fe2a4d847a0b0d458770de <
    530a9d5ef831a0049dad9a6b2b92d02301352c38
  - >-
    Linux >= e842f9a1edf306bf36fe2a4d847a0b0d458770de <
    b74030fbf187b43c1f85b66a7082e9946511cb5d
  - Linux 6d22953c4a183d0b7fdf34d68c5debd16da6edc5
  - Linux a0d069ccc475abaaa79c6368ee27fc0b5912bea8
  - Linux >= 5.10.235 < 5.10.270
  - Linux >= 5.15.179 < 5.15.221
  - Linux >= 6.1.131 < 6.1.188
  - Linux >= 6.6.83 < 6.6.157
  - Linux >= 6.12.19 < 6.12.110
  - Linux >= 5.4.291 < 5.5
  - Linux >= 6.13.7 < 6.14
  - Linux 6.14
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:29.817'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90319'
references:
  - url: 'https://git.kernel.org/stable/c/24f60ebabeb8757cec8ec2f97660d521bc9147ec'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/332591a245de978349a7558f8b20469951bb77cc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3f00999e44d9984036a029dbad9d2afe94a674d0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/44a37264b26911e13d0a4f5630751c4157ed0354'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/530a9d5ef831a0049dad9a6b2b92d02301352c38'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6a760a53e73064735cdfa9e51c664983a89baf96'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/75f0bc167b96bbbef8182b88308c732af82c8d83'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b74030fbf187b43c1f85b66a7082e9946511cb5d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.824Z'
epss: 0.0021
epssPercentile: 0.10071
---

## Overview

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

rapidio: clear mport->net when rio_add_net() fails

rio_alloc_net() stores the newly allocated rio_net in mport->net before
rio_scan_alloc_net() registers the device.

If rio_add_net() fails, rio_scan_alloc_net() drops the device reference
with put_device(), which releases the rio_net through the device release
callback.  However, mport->net is left pointing at the freed object.

A later mport unregister path can then dereference the dangling mport->net
pointer and may try to free the same rio_net again.

Clear mport->net in the rio_add_net() failure path, matching the cleanup
done for the destID table allocation failure path.

## Remediation

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