---
id: CVE-2026-89844
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition

  qla24xx_report_id_acquisition() format-1 handling drops vport_slock after
  taking the vport…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition

  qla24xx_report_id_acquisition() format-1 handling drops vport_slock after
  taking the vport…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 430eef03a763e5e76a371ba6d02779ae4a64b6ea <
    e8f1b0cb9782338c6341ceed816e9c1243743cdd
  - >-
    Linux >= 430eef03a763e5e76a371ba6d02779ae4a64b6ea <
    6ed66e2a67bbd22877008ff9aa64bd574a7fc011
  - >-
    Linux >= 430eef03a763e5e76a371ba6d02779ae4a64b6ea <
    776e4e8cbcf155302f430ce9793d1502e3c113a0
  - >-
    Linux >= 430eef03a763e5e76a371ba6d02779ae4a64b6ea <
    7d0b3f745efb24c0aac5e06b49b3420bc65d23b9
  - >-
    Linux >= 430eef03a763e5e76a371ba6d02779ae4a64b6ea <
    7944039ba9cb5c3a935d17c91004e3b8649ff58e
  - Linux 6.3
published: '2026-09-16'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T15:18:12.703'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89844'
references:
  - url: 'https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-16T10:53:53.995Z'
epss: 0.00398
epssPercentile: 0.31223
---

## Overview

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

scsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition

qla24xx_report_id_acquisition() format-1 handling drops vport_slock after
taking the vport reference and then calls qla_update_host_map() without
the lock. That reaches qla_update_vp_map(), which mutates the ha->host_map
btree via btree_insert32()/btree_update32()/btree_remove32() and is
documented to require vport_slock to be held by the caller. Running it
unlocked can race concurrent host_map updates and corrupt the btree.

The format-2 path in the same function already wraps its host_map update
(SET_AL_PA) in vport_slock; the format-1 path is the lone outlier.

Hold vport_slock across the format-1 qla_update_host_map() call to honor
the documented locking contract. The vref_count taken in the loop keeps
the vport valid, so this only adds the missing host_map serialization.

## Remediation

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