---
id: CVE-2026-92497
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx()

  Currently, in ath12k_wmi_op_rx(), the firmware buffer is read without
  first verifying that the buffer has eno…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx()

  Currently, in ath12k_wmi_op_rx(), the firmware buffer is read without
  first verifying that the buffer has eno…
severity: medium
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 <
    9784faa6afd26693287e8e4569bdedee00212909
  - >-
    Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 <
    07659388110de004cbb753f3c7bc85e657e51f7a
  - >-
    Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 <
    95d1bd1db9e9d8eccffc880166e01c4775115716
  - >-
    Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 <
    9e6ec0977f0b9c16fc20efea050e3eea8f66e34b
  - >-
    Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 <
    7698656a2f7b045af5a6859766238cefea1b1945
  - Linux 6.3
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:52.033'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92497'
references:
  - url: 'https://git.kernel.org/stable/c/07659388110de004cbb753f3c7bc85e657e51f7a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7698656a2f7b045af5a6859766238cefea1b1945'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/95d1bd1db9e9d8eccffc880166e01c4775115716'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9784faa6afd26693287e8e4569bdedee00212909'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9e6ec0977f0b9c16fc20efea050e3eea8f66e34b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92497.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-92497'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2536588'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-92497'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92497'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-92497.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-09-17T16:21:47.782Z'
epss: 0.00168
epssPercentile: 0.05977
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-125
---

## Overview

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

wifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx()

Currently, in ath12k_wmi_op_rx(), the firmware buffer is read without
first verifying that the buffer has enough data to hold a header. This
could result in a buffer overread.

Update the logic to verify the buffer contains at least enough data to
hold a wmi_cmd_hdr before reading from the buffer.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c7-00108-QCAHMTSWPL_V1.0_V2.0_SILICONZ_UPSTREAM-3

## 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 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92497.json)