---
id: CVE-2026-93242
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: qla2xxx: Fix response queue over-consumption in __qla_consume_iocb()

  qla24xx_process_response_queue() advances ring_ptr past the head IOCB
  before dispatching, so…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: qla2xxx: Fix response queue over-consumption in __qla_consume_iocb()

  qla24xx_process_response_queue() advances ring_ptr past the head IOCB
  before dispatching, so…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= fac2807946c10b9a509b9c348afd442fa823c5f7 <
    a136c311676fd1010b1bde3bcfd410caa2fa040f
  - >-
    Linux >= fac2807946c10b9a509b9c348afd442fa823c5f7 <
    d841707fafba5f80341b82e8c3a4c24fc5aa5132
  - >-
    Linux >= fac2807946c10b9a509b9c348afd442fa823c5f7 <
    6e3f129538c32d0019437197735912308c161843
  - >-
    Linux >= fac2807946c10b9a509b9c348afd442fa823c5f7 <
    bd1534d4afab47f13dfc27fff6f59dd859a0ac3a
  - >-
    Linux >= fac2807946c10b9a509b9c348afd442fa823c5f7 <
    31715d1e1cbf3a37ce3452635c5602f73fd7abd4
  - >-
    Linux >= fac2807946c10b9a509b9c348afd442fa823c5f7 <
    df86c27cf1ba9d66f737a1fa56479c6e7efafe4e
  - >-
    Linux >= fac2807946c10b9a509b9c348afd442fa823c5f7 <
    3ba019bdd89d931499d9476456b5d9c7ab7fa753
  - Linux 5.15
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T16:17:20.090'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93242'
references:
  - url: 'https://git.kernel.org/stable/c/31715d1e1cbf3a37ce3452635c5602f73fd7abd4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3ba019bdd89d931499d9476456b5d9c7ab7fa753'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6e3f129538c32d0019437197735912308c161843'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a136c311676fd1010b1bde3bcfd410caa2fa040f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bd1534d4afab47f13dfc27fff6f59dd859a0ac3a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d841707fafba5f80341b82e8c3a4c24fc5aa5132'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/df86c27cf1ba9d66f737a1fa56479c6e7efafe4e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T15:45:56.656Z'
epss: 0.00224
epssPercentile: 0.1182
---

## Overview

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

scsi: qla2xxx: Fix response queue over-consumption in __qla_consume_iocb()

qla24xx_process_response_queue() advances ring_ptr past the head IOCB
before dispatching, so by the time __qla_consume_iocb() runs, ring_ptr
already points at the first continuation IOCB. The function however
looped purex->entry_count times starting at ring_ptr. As entry_count
includes the head, this consumed one entry too many: it stamped
RESPONSE_PROCESSED on the next, unrelated IOCB and advanced the ring
past it, silently dropping a legitimate firmware response. The head
IOCB's signature was also never marked.

Mark the head processed and account for it, then consume only the
entry_count - 1 continuation IOCBs, matching __qla_copy_purex_to_buffer().

## Remediation

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