---
id: CVE-2026-90361
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath11k: fix leak in ath11k_service_ready_ext_event()

  Currently, during ath11k_service_ready_ext_event() processing,
  svc_rdy_ext.mac_phy_caps can be allocated dur…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath11k: fix leak in ath11k_service_ready_ext_event()

  Currently, during ath11k_service_ready_ext_event() processing,
  svc_rdy_ext.mac_phy_caps can be allocated dur…
severity: medium
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 5b90fc760db5a969ed26d70f8e62c91915f012bd <
    35cb3086b426b3468cfc32d0d8d9883409705ea9
  - >-
    Linux >= 5b90fc760db5a969ed26d70f8e62c91915f012bd <
    854eb9053a793b73c4e8082e1923735a80c77bcd
  - >-
    Linux >= 5b90fc760db5a969ed26d70f8e62c91915f012bd <
    7dbf0bc50cf3ddd039becd875691bb7f484fa004
  - >-
    Linux >= 5b90fc760db5a969ed26d70f8e62c91915f012bd <
    1296cae53052881ddd571a9d4f467a16ebfb7f14
  - >-
    Linux >= 5b90fc760db5a969ed26d70f8e62c91915f012bd <
    10ccd92825504c029390874c6fb84c62d9f263f9
  - >-
    Linux >= 5b90fc760db5a969ed26d70f8e62c91915f012bd <
    f5bb3471c9f46c6cabc06a152c13fc518330913e
  - >-
    Linux >= 5b90fc760db5a969ed26d70f8e62c91915f012bd <
    047a817147806140cdef5fa25d69d7b7a24f905c
  - >-
    Linux >= 5b90fc760db5a969ed26d70f8e62c91915f012bd <
    0293be2212d319d59589082461abf2a9b626cd1c
  - Linux 5.6
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:35.073'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90361'
references:
  - url: 'https://git.kernel.org/stable/c/0293be2212d319d59589082461abf2a9b626cd1c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/047a817147806140cdef5fa25d69d7b7a24f905c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/10ccd92825504c029390874c6fb84c62d9f263f9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1296cae53052881ddd571a9d4f467a16ebfb7f14'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/35cb3086b426b3468cfc32d0d8d9883409705ea9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7dbf0bc50cf3ddd039becd875691bb7f484fa004'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/854eb9053a793b73c4e8082e1923735a80c77bcd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f5bb3471c9f46c6cabc06a152c13fc518330913e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90361.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-90361'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2536779'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-90361'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90361'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90361.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-09-17T16:21:47.812Z'
epss: 0.00216
epssPercentile: 0.11979
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-772
---

## Overview

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

wifi: ath11k: fix leak in ath11k_service_ready_ext_event()

Currently, during ath11k_service_ready_ext_event() processing,
svc_rdy_ext.mac_phy_caps can be allocated during TLV parsing. This is a
temporary allocation that is freed on the success path, but not on the
error path. If parsing succeeds far enough to allocate mac_phy_caps and
then fails on a later TLV, the allocation leaks. So free the allocation
on the error path.

Compile tested only.

## 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 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-30 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90361.json)