---
id: CVE-2026-97456
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ACPICA: Fix condition check in acpi_ps_parse_loop()

  Fix condition check for AML_ELSE_OP in acpi_ps_parse_loop() to prevent
  out-of-bounds access.
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ACPICA: Fix condition check in acpi_ps_parse_loop()

  Fix condition check for AML_ELSE_OP in acpi_ps_parse_loop() to prevent
  out-of-bounds access.
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-125
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 5088814a6e931350e5bd29f5d59fa40c6dbbdf10 <
    c838d32fbe02a6d426aebf95d2aef97de92ddc43
  - >-
    Linux >= 5088814a6e931350e5bd29f5d59fa40c6dbbdf10 <
    b79f5cb2131956a7d2c99870336d9fcc6db80c4b
  - >-
    Linux >= 5088814a6e931350e5bd29f5d59fa40c6dbbdf10 <
    de2bbc8dbe7048f20f0a783a81e712fd3664de5b
  - >-
    Linux >= 5088814a6e931350e5bd29f5d59fa40c6dbbdf10 <
    4c22c9842c53b824743bdf1d8d19e1cdb908f82e
  - >-
    Linux >= 5088814a6e931350e5bd29f5d59fa40c6dbbdf10 <
    a477c6ef5335d2d0613ff7c1779a8209f16627c5
  - >-
    Linux >= 5088814a6e931350e5bd29f5d59fa40c6dbbdf10 <
    5d16f40b019e59df81deb594ed4eafefc8e43cc0
  - >-
    Linux >= 5088814a6e931350e5bd29f5d59fa40c6dbbdf10 <
    8de27e2d83c0d07ae9443c6304575b0609394bfd
  - Linux 2e78935d1e27d31955ad2dad4abe6c453cf669fd
  - Linux >= 4.17.3 < 4.18
  - Linux 4.18
published: '2026-09-24'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:17:57.507'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97456'
references:
  - url: 'https://git.kernel.org/stable/c/4c22c9842c53b824743bdf1d8d19e1cdb908f82e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5d16f40b019e59df81deb594ed4eafefc8e43cc0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8de27e2d83c0d07ae9443c6304575b0609394bfd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a477c6ef5335d2d0613ff7c1779a8209f16627c5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b79f5cb2131956a7d2c99870336d9fcc6db80c4b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c838d32fbe02a6d426aebf95d2aef97de92ddc43'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/de2bbc8dbe7048f20f0a783a81e712fd3664de5b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97456.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-97456'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2540453'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-97456'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97456'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97456.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00173
epssPercentile: 0.06644
cvssSource: vendor
ingestedAt: '2026-09-24T16:47:15.873Z'
---

## Overview

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

ACPICA: Fix condition check in acpi_ps_parse_loop()

Fix condition check for AML_ELSE_OP in acpi_ps_parse_loop() to prevent
out-of-bounds access.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97456.json)