---
id: CVE-2026-89858
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()

  qla2x00_update_fru_versions() copies the user-supplied BSG request into
  a fixed 256-byte stack buffer…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()

  qla2x00_update_fru_versions() copies the user-supplied BSG request into
  a fixed 256-byte stack buffer…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 <
    af733bbfcf667af1871a2735fba2835b0da71efb
  - >-
    Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 <
    a9706d5e754e77515a92bb532bd0d73644979a1f
  - >-
    Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 <
    7e3154c97ec15460f715dbbe4097c255cce110b1
  - >-
    Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 <
    047f1f7ee6f85bde28abfdda9fa550191ddc0532
  - >-
    Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 <
    f93e8039e6fd54a3c027c6184daf00b745b576a0
  - >-
    Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 <
    7b22b4cb8822805cef7ba618da6f76e1474d68bd
  - >-
    Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 <
    f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514
  - >-
    Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 <
    de62cf265dbe309f34f144a6cdbca9240317727e
  - Linux 3.2
published: '2026-09-16'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T11:16:53.693'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89858'
references:
  - url: 'https://git.kernel.org/stable/c/047f1f7ee6f85bde28abfdda9fa550191ddc0532'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7b22b4cb8822805cef7ba618da6f76e1474d68bd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7e3154c97ec15460f715dbbe4097c255cce110b1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a9706d5e754e77515a92bb532bd0d73644979a1f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/af733bbfcf667af1871a2735fba2835b0da71efb'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/de62cf265dbe309f34f144a6cdbca9240317727e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f93e8039e6fd54a3c027c6184daf00b745b576a0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-16T10:53:53.991Z'
epss: 0.0021
epssPercentile: 0.10005
---

## Overview

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

scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()

qla2x00_update_fru_versions() copies the user-supplied BSG request into
a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates
list->count times over the qla_image_version array embedded in that
buffer, advancing the image pointer each iteration. count is taken
directly from user input with no upper bound, while only (DMA_POOL_SIZE
- sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries
actually fit. A larger count walks the image pointer off the end of the
stack buffer, reading adjacent kernel stack memory and sending it to the
device via qla2x00_write_sfp().

Reject requests whose declared count does not fit in the buffer.

## Remediation

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