---
id: CVE-2026-90007
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: pm8001: Use rollback index when freeing MSI-X vectors

  pm8001_request_msix() unwinds previously registered handlers with
  free_irq() when request_irq() fails
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: pm8001: Use rollback index when freeing MSI-X vectors

  pm8001_request_msix() unwinds previously registered handlers with
  free_irq() when request_irq() fails. The …
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= a76037ff3479ad333a2505061915f7a21e7f3fb6 <
    f39e3ca1f688d7c08954a0794e9bf1e279c83b15
  - >-
    Linux >= a76037ff3479ad333a2505061915f7a21e7f3fb6 <
    a980dec7c69990e4f119bcf6a2ea093d1c4975e8
  - >-
    Linux >= a76037ff3479ad333a2505061915f7a21e7f3fb6 <
    0205db768570f9a46b20912afa581a0c7a63d8b7
  - >-
    Linux >= a76037ff3479ad333a2505061915f7a21e7f3fb6 <
    2853ce9c88e0e6dd575f95f28b3a8c2b27164115
  - >-
    Linux >= a76037ff3479ad333a2505061915f7a21e7f3fb6 <
    fb22a8d2f3ac6665cc8bee197096b6675cac1a9f
  - >-
    Linux >= a76037ff3479ad333a2505061915f7a21e7f3fb6 <
    dd817463c9b42a3a9e23d15b86c6c77a6cfb809d
  - >-
    Linux >= a76037ff3479ad333a2505061915f7a21e7f3fb6 <
    e20b16aa3b49f9db5510940740255a987e6f2a6f
  - >-
    Linux >= a76037ff3479ad333a2505061915f7a21e7f3fb6 <
    3f92a64545165bdbb36dee8fa35626b295463313
  - Linux 4.11
published: '2026-09-16'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T15:18:24.297'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90007'
references:
  - url: 'https://git.kernel.org/stable/c/0205db768570f9a46b20912afa581a0c7a63d8b7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2853ce9c88e0e6dd575f95f28b3a8c2b27164115'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3f92a64545165bdbb36dee8fa35626b295463313'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a980dec7c69990e4f119bcf6a2ea093d1c4975e8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/dd817463c9b42a3a9e23d15b86c6c77a6cfb809d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e20b16aa3b49f9db5510940740255a987e6f2a6f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f39e3ca1f688d7c08954a0794e9bf1e279c83b15'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fb22a8d2f3ac6665cc8bee197096b6675cac1a9f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-16T10:53:53.944Z'
epss: 0.00176
epssPercentile: 0.06315
---

## Overview

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

scsi: pm8001: Use rollback index when freeing MSI-X vectors

pm8001_request_msix() unwinds previously registered handlers with
free_irq() when request_irq() fails. The rollback loop uses the failing
index i for every iteration instead of the already registered vector
index j.

That passes the wrong IRQ/dev_id pair to free_irq() and leaves the
earlier handlers installed. Use j for both pci_irq_vector() and the
matching irq_vector entry in the rollback loop.

## Remediation

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