CVE-2024-56559

5.5 · MEDIUM

Published Dec 27, 2024 linux CWE-667 EPSS 0.14% (4th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-56559 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:

mm/vmalloc: combine all TLB flush operations of KASAN shadow virtual address into one operation

When compiling kernel source 'make -j $(nproc)' with the up-and-running

KASAN-enabled kernel on a 256-core machine, the following soft lockup is

shown:

watchdog: BUG: soft lockup - CPU#28 stuck for 22s! [kworker/28:1:1760]

CPU: 28 PID: 1760 Comm: kworker/28:1 Kdump: loaded Not tainted 6.10.0-rc5 #95

Workqueue: events drain_vmap_area_work

RIP: 0010:smp_call_function_many_cond+0x1d8/0xbb0

Code: 38 c8 7c 08 84 c9 0f 85 49 08 00 00 8b 45 08 a8 01 74 2e 48 89 f1 49 89 f7 48 c1 e9 03 41 83 e7 07 4c 01 e9 41 83 c7 03 f3 90 <0f> b6 01 41 38 c7 7c 08 84 c0 0f 85 d4 06 00 00 8b 45 08 a8 01 75

RSP: 0018:ffffc9000cb3fb60 EFLAGS: 00000202

RAX: 0000000000000011 RBX: ffff8883bc4469c0 RCX: ffffed10776e9949

RDX: 0000000000000002 RSI: ffff8883bb74ca48 RDI: ffffffff8434dc50

RBP: ffff8883bb74ca40 R08: ffff888103585dc0 R09: ffff8884533a1800

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	>= 6.9, < 6.12.4	Affected

References

Ref git.kernel.org/stable/c/9e9e085effe9b7e342138fde3cf8577d22509932 Ref git.kernel.org/stable/c/f9a18889aad9b4c19c6c4550c67ad4f9ed2a354f

Frequently Asked Questions

What is CVE-2024-56559?

CVE-2024-56559 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-2024-56559?

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-2024-56559?

How can CyberStrike help with CVE-2024-56559?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-56559 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.

How CyberStrike Helps

Autonomous Discovery

AI agents map your attack surface to find vulnerabilities like this one.

Continuous Pentesting

Automated penetration testing that runs continuously, not just quarterly.

Code Review

AI-driven PR review catches vulnerable dependencies before they ship.

HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

Related MEDIUM CVEs from 2024

View all →

6.9

CVE-2023-3726

OCSInventory allow stored email template with special characters that lead to a Stored cross-site Sc

6.9

CVE-2023-51719