CVE-2024-56613

5.5 · MEDIUM

Published Dec 27, 2024 linux CWE-401 EPSS 0.20% (10th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-56613 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:

sched/numa: fix memory leak due to the overwritten vma->numab_state

[Problem Description]

When running the hackbench program of LTP, the following memory leak is

reported by kmemleak.

# /opt/ltp/testcases/bin/hackbench 20 thread 1000

Running with 20*40 (== 800) tasks.

# dmesg | grep kmemleak

...

kmemleak: 480 new suspected memory leaks (see /sys/kernel/debug/kmemleak)

kmemleak: 665 new suspected memory leaks (see /sys/kernel/debug/kmemleak)

# cat /sys/kernel/debug/kmemleak

unreferenced object 0xffff888cd8ca2c40 (size 64):

comm "hackbench", pid 17142, jiffies 4299780315

hex dump (first 32 bytes):

ac 74 49 00 01 00 00 00 4c 84 49 00 01 00 00 00 .tI.....L.I.....

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

backtrace (crc bff18fd4):

[<ffffffff81419a89>] __kmalloc_cache_noprof+0x2f9/0x3f0

[<ffffffff8113f715>] task_numa_work+0x725/0xa00

[<ff

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	>= 6.4, < 6.6.66	Affected

References

Ref git.kernel.org/stable/c/5f1b64e9a9b7ee9cfd32c6b2fab796e29bfed075 Ref git.kernel.org/stable/c/8f149bcc4d91ac92b32ff4949b291e6ed883dc42 Ref git.kernel.org/stable/c/a71ddd5b87cda687efa28e049e85e923689bcef9

Frequently Asked Questions

What is CVE-2024-56613?

CVE-2024-56613 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-2024-56613?

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-2024-56613?

How can CyberStrike help with CVE-2024-56613?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-56613 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

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Code Review

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HackBrowser

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

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