CVE-2024-58042

Published Feb 27, 2025

Last updated a year ago

CVSS medium 5.5

Overview

Description
In the Linux kernel, the following vulnerability has been resolved: rhashtable: Fix potential deadlock by moving schedule_work outside lock Move the hash table growth check and work scheduling outside the rht lock to prevent a possible circular locking dependency. The original implementation could trigger a lockdep warning due to a potential deadlock scenario involving nested locks between rhashtable bucket, rq lock, and dsq lock. By relocating the growth check and work scheduling after releasing the rth lock, we break this potential deadlock chain. This change expands the flexibility of rhashtable by removing restrictive locking that previously limited its use in scheduler and workqueue contexts. Import to say that this calls rht_grow_above_75(), which reads from struct rhashtable without holding the lock, if this is a problem, we can move the check to the lock, and schedule the workqueue after the lock. Modified so that atomic_inc is also moved outside of the bucket lock along with the growth above 75% check.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD status
Modified
Products
linux_kernel

Risk scores

CVSS 3.1

Type
Primary
Base score
5.5
Impact score
3.6
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

nvd@nist.gov
CWE-667
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-667

Social media

Hype score
Not currently trending

  1. 🚨 CVE-2024-58042 ❓ 🏢 Linux - Linux 🏗️ f0e1a0643a59bf1f922fa209cec86a170b784f3f 🔗 https://t.co/EcsM2sLs8e 🔗 https://t.co/HWWxD9VLG8 🔗 https://t.co/fJnkte8eGd #CyberCron #VulnAlert @Linux https://t.co/lfSDyGhRml

    @cybercronai

    1 Mar 2025

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  2. CVE-2024-58042 In the Linux kernel, the following vulnerability has been resolved: rhashtable: Fix potential deadlock by moving schedule_work outside lock Move the hash table grow… https://t.co/UVgVVSBnM0

    @CVEnew

    27 Feb 2025

    42 Impressions

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Configurations

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References

Sources include official advisories and independent security research.