---
id: CVE-2026-97411
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: ibm: emac: mal: fix potential system hang in mal_remove()

  napi_disable() is not idempotent and calling it on an already-disabled
  or unenabled NAPI context will ca…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: ibm: emac: mal: fix potential system hang in mal_remove()

  napi_disable() is not idempotent and calling it on an already-disabled
  or unenabled NAPI context will ca…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9 <
    9c1c814a662d9c81959eba591bb52b24639390f2
  - >-
    Linux >= b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9 <
    34c4cae51718d6f393415e01c61314c1bde02f2e
  - >-
    Linux >= b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9 <
    62126e73e230cf4bd6c27cf201949c4290af84a1
  - >-
    Linux >= b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9 <
    f0399b3e212741bc5a64b8399d6266c4a150bdfe
  - >-
    Linux >= b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9 <
    f6c1aad9b35fa083f48ce0c5926204891d82e089
  - >-
    Linux >= b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9 <
    c4cb9a728df66c46067b26263f5beb633aae4087
  - >-
    Linux >= b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9 <
    7c5d41f87f079990bf241359e3c1332d8d10fe87
  - Linux 2.6.24
published: '2026-09-24'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:17:53.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97411'
references:
  - url: 'https://git.kernel.org/stable/c/34c4cae51718d6f393415e01c61314c1bde02f2e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/62126e73e230cf4bd6c27cf201949c4290af84a1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7c5d41f87f079990bf241359e3c1332d8d10fe87'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9c1c814a662d9c81959eba591bb52b24639390f2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c4cb9a728df66c46067b26263f5beb633aae4087'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f0399b3e212741bc5a64b8399d6266c4a150bdfe'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f6c1aad9b35fa083f48ce0c5926204891d82e089'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00173
epssPercentile: 0.06643
ingestedAt: '2026-09-24T16:47:15.887Z'
---

## Overview

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

net: ibm: emac: mal: fix potential system hang in mal_remove()

napi_disable() is not idempotent and calling it on an already-disabled
or unenabled NAPI context will cause the kernel to spin indefinitely
waiting for the NAPI_STATE_SCHED bit to clear.

In mal_remove(), napi_disable() is called unconditionally. If no MACs were
registered, NAPI was never enabled. Also, if they were registered but
subsequently unregistered, NAPI was already disabled in
mal_unregister_commac(). In either case, calling napi_disable() causes
the kernel to hang upon module removal.

Fix this by only calling napi_disable() in mal_remove() if the commac list
is not empty (which implies NAPI is enabled).

## Remediation

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