---
id: CVE-2026-90352
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7915: release hif2 reference on probe IRQ failure

  The hif2 reference obtained by mt7915_pci_init_hif2() is only released on
  error paths that key off dev-…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7915: release hif2 reference on probe IRQ failure

  The hif2 reference obtained by mt7915_pci_init_hif2() is only released on
  error paths that key off dev-…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= f68d67623dec9445960b52a0e9e8e60297596b4b <
    8a2e38019846da29a112fac4dd96fe5bfa298faf
  - >-
    Linux >= f68d67623dec9445960b52a0e9e8e60297596b4b <
    2a434d2637b9c9be9bcc8a84dc46880cc1446643
  - >-
    Linux >= f68d67623dec9445960b52a0e9e8e60297596b4b <
    5c30a6350a300fbb800831f1b4373b2f59e03410
  - >-
    Linux >= f68d67623dec9445960b52a0e9e8e60297596b4b <
    ed5cc46a3c8f4fe7f549c661914d8d835169acc0
  - >-
    Linux >= f68d67623dec9445960b52a0e9e8e60297596b4b <
    fb9c7b4c238b4e5469a11a1fb8cf332f6193b995
  - >-
    Linux >= f68d67623dec9445960b52a0e9e8e60297596b4b <
    8370aebd26a9dfa2e0de665e3ab504c0e97ee730
  - Linux 5.19
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:34.013'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90352'
references:
  - url: 'https://git.kernel.org/stable/c/2a434d2637b9c9be9bcc8a84dc46880cc1446643'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5c30a6350a300fbb800831f1b4373b2f59e03410'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8370aebd26a9dfa2e0de665e3ab504c0e97ee730'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8a2e38019846da29a112fac4dd96fe5bfa298faf'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ed5cc46a3c8f4fe7f549c661914d8d835169acc0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fb9c7b4c238b4e5469a11a1fb8cf332f6193b995'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.814Z'
epss: 0.00205
epssPercentile: 0.10897
---

## Overview

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

wifi: mt76: mt7915: release hif2 reference on probe IRQ failure

The hif2 reference obtained by mt7915_pci_init_hif2() is only released on
error paths that key off dev->hif2, which is not assigned until after the
IRQ setup. If pci_alloc_irq_vectors() or the primary devm_request_irq()
fails, the reference leaks. Drop it explicitly on those paths via
mt7915_put_hif2().

## Remediation

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