CVE-2024-56599

5.5 · MEDIUM

Published Dec 27, 2024 linux CWE-476 EPSS 0.23% (14th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-56599 is a medium-severity vulnerability affecting linux linux_kernel. It was published on December 27, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

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

wifi: ath10k: avoid NULL pointer error during sdio remove

When running 'rmmod ath10k', ath10k_sdio_remove() will free sdio

workqueue by destroy_workqueue(). But if CONFIG_INIT_ON_FREE_DEFAULT_ON

is set to yes, kernel panic will happen:

Call trace:

destroy_workqueue+0x1c/0x258

ath10k_sdio_remove+0x84/0x94

sdio_bus_remove+0x50/0x16c

device_release_driver_internal+0x188/0x25c

device_driver_detach+0x20/0x2c

This is because during 'rmmod ath10k', ath10k_sdio_remove() will call

ath10k_core_destroy() before destroy_workqueue(). wiphy_dev_release()

will finally be called in ath10k_core_destroy(). This function will free

struct cfg80211_registered_device *rdev and all its members, including

wiphy, dev and the pointer of sdio workqueue. Then the pointer of sdio

workqueue will be set to NULL due to CONFIG_INIT_ON_FREE_DEFAULT_ON.

After device release, destroy_workqueue() will use NULL pointer then the

kernel panic happen

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor	Product	Versions	Status
linux	linux_kernel	>= 0, < 6.12.5	Affected

References

Ref git.kernel.org/stable/c/27d5d217ae7ffb99dd623375a17a7d3418d9c755 Ref git.kernel.org/stable/c/27fda36eedad9e4ec795dc481f307901d1885112 Ref git.kernel.org/stable/c/543c0924d446b21f35701ca084d7feca09511220 Ref git.kernel.org/stable/c/6e5dbd1c04abf2c19b2282915e6fa48b6ccc6921 Ref git.kernel.org/stable/c/95c38953cb1ecf40399a676a1f85dfe2b5780a9a Ref git.kernel.org/stable/c/b35de9e01fc79c7baac666fb2dcb4ba7698a1d97 Ref lists.debian.org/debian-lts-announce/2025/03/msg00001.html Ref lists.debian.org/debian-lts-announce/2025/05/msg00030.html

Frequently Asked Questions

What is CVE-2024-56599?

CVE-2024-56599 is a medium-severity vulnerability affecting linux linux_kernel. It was published on December 27, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56599?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-56599?

How can CyberStrike help with CVE-2024-56599?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-56599 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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