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CVE-2024-26681

5.5 · MEDIUM
Published Apr 2, 2024 linux CWE-835 EPSS 0.22% (13th pctl)

Overview

CVE-2024-26681 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 2, 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:

netdevsim: avoid potential loop in nsim_dev_trap_report_work()

Many syzbot reports include the following trace [1]

If nsim_dev_trap_report_work() can not grab the mutex,

it should rearm itself at least one jiffie later.

[1]

Sending NMI from CPU 1 to CPUs 0:

NMI backtrace for cpu 0

CPU: 0 PID: 32383 Comm: kworker/0:2 Not tainted 6.8.0-rc2-syzkaller-00031-g861c0981648f #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023

Workqueue: events nsim_dev_trap_report_work

RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:89 [inline]

RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]

RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]

RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]

RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]

RIP: 0010:kasan_check_range+0x101/0x190 mm/kasan/generic.c:189

Code: 07 49 39 d1 75 0a 45 3a 11 b8 01 00 00 00

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 >= 6.0, < 6.1.78 Affected

Frequently Asked Questions

What is CVE-2024-26681?

CVE-2024-26681 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 2, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26681?

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-2024-26681?

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.

How can CyberStrike help with CVE-2024-26681?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26681 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.