---
id: CVE-2026-93279
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown

  The TX cleanup tasklet can be scheduled by the watchdog IRQ handler
  to execute cvm_oct_tx_do_cleanup
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown

  The TX cleanup tasklet can be scheduled by the watchdog IRQ handler
  to execute cvm_oct_tx_do_cleanup. …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 4898c560103fb8075c10a8e9d70e0ca26873075e <
    32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486
  - >-
    Linux >= 4898c560103fb8075c10a8e9d70e0ca26873075e <
    d15226338dfaa84ffff142d32723cdf74d0c47c4
  - >-
    Linux >= 4898c560103fb8075c10a8e9d70e0ca26873075e <
    a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19
  - >-
    Linux >= 4898c560103fb8075c10a8e9d70e0ca26873075e <
    b6365e4186322858a82c8713b1d0bd209c8e765a
  - >-
    Linux >= 4898c560103fb8075c10a8e9d70e0ca26873075e <
    03d12490afd1198310ad0aba42462329832eb739
  - >-
    Linux >= 4898c560103fb8075c10a8e9d70e0ca26873075e <
    2c0c9956596e48654bb4855e2a0742748a0826a7
  - >-
    Linux >= 4898c560103fb8075c10a8e9d70e0ca26873075e <
    41a79bd9e5a74f8f483b3b206d10567912874fb4
  - >-
    Linux >= 4898c560103fb8075c10a8e9d70e0ca26873075e <
    b9af44b0d20b2247c4eb0ea5cfca907d643eea50
  - Linux 2.6.34
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T16:17:25.147'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93279'
references:
  - url: 'https://git.kernel.org/stable/c/03d12490afd1198310ad0aba42462329832eb739'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2c0c9956596e48654bb4855e2a0742748a0826a7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/41a79bd9e5a74f8f483b3b206d10567912874fb4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b6365e4186322858a82c8713b1d0bd209c8e765a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b9af44b0d20b2247c4eb0ea5cfca907d643eea50'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d15226338dfaa84ffff142d32723cdf74d0c47c4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.841Z'
epss: 0.00196
epssPercentile: 0.08314
---

## Overview

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

staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown

The TX cleanup tasklet can be scheduled by the watchdog IRQ handler
to execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in
the queue which might run after the cvm_oct_remove() frees net_device
structures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it
iterates cvm_oct_device[] which is an array of netdevice pointers.
Add tasklet_kill() after free_irq() to ensure the tasklet is no longer
scheduled or running before teardown proceeds.

## Remediation

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