---
id: CVE-2024-50127
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: sched: fix use-after-free in taprio_change()

  In 'taprio_change()', 'admin' pointer may become dangling due to sched
  switch / removal caused by 'advance_sched()', …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: sched: fix use-after-free in taprio_change()

  In 'taprio_change()', 'admin' pointer may become dangling due to sched
  switch / removal caused by 'advance_sched()', …
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-416
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.2, < 5.15.170'
  - 'linux_kernel >= 5.16, < 6.1.115'
  - 'linux_kernel >= 6.2, < 6.6.59'
  - 'linux_kernel >= 6.7, < 6.11.6'
  - linux_kernel = 6.12
patched:
  - linux_kernel 6.11.6
published: '2024-11-05'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:19:07.610'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-50127'
references:
  - url: 'https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2f868ce6013548a713c431c679ef73747a66fcf3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8a283a19026aaae8a773fd8061263cfa315b127f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/999612996df28d81f163dad530d7f8026e03aec6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f504465970aebb2467da548f7c1efbbf36d0f44b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fe371f084073e8672a2d7d46b335c3c060d1e301'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00247
epssPercentile: 0.1593
ingestedAt: '2026-10-15T03:30:12.763Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2024-12-11T14:28:21.328657Z'
---

## Overview

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

net: sched: fix use-after-free in taprio_change()

In 'taprio_change()', 'admin' pointer may become dangling due to sched
switch / removal caused by 'advance_sched()', and critical section
protected by 'q->current_entry_lock' is too small to prevent from such
a scenario (which causes use-after-free detected by KASAN). Fix this
by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update
'admin' immediately before an attempt to schedule freeing.

## Affected

- `linux_kernel >= 5.2, < 5.15.170`
- `linux_kernel >= 5.16, < 6.1.115`
- `linux_kernel >= 6.2, < 6.6.59`
- `linux_kernel >= 6.7, < 6.11.6`
- `linux_kernel = 6.12`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.11.6`