---
id: CVE-2025-68173
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ftrace: Fix softlockup in ftrace_module_enable

  A soft lockup was observed when loading amdgpu module.
  If a module has a lot of tracable functions, multiple calls
  to ka…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ftrace: Fix softlockup in ftrace_module_enable

  A soft lockup was observed when loading amdgpu module.
  If a module has a lot of tracable functions, multiple calls
  to ka…
severity: none
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68173'
references:
  - url: 'https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/40c8ee40e48a2c82c762539952ed8fc0571db5bf'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00201
epssPercentile: 0.09278
ingestedAt: '2026-10-14T13:30:58.444Z'
---

## Overview

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

ftrace: Fix softlockup in ftrace_module_enable

A soft lockup was observed when loading amdgpu module.
If a module has a lot of tracable functions, multiple calls
to kallsyms_lookup can spend too much time in RCU critical
section and with disabled preemption, causing kernel panic.
This is the same issue that was fixed in
commit d0b24b4e91fc ("ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY
kernels") and commit 42ea22e754ba ("ftrace: Add cond_resched() to
ftrace_graph_set_hash()").

Fix it the same way by adding cond_resched() in ftrace_module_enable.

## Remediation

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