CVE-2024-26841

5.5 · MEDIUM

Published Apr 17, 2024 linux CWE-459 EPSS 0.22% (13th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-26841 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 17, 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:

LoongArch: Update cpu_sibling_map when disabling nonboot CPUs

Update cpu_sibling_map when disabling nonboot CPUs by defining & calling

clear_cpu_sibling_map(), otherwise we get such errors on SMT systems:

jump label: negative count!

WARNING: CPU: 6 PID: 45 at kernel/jump_label.c:263 __static_key_slow_dec_cpuslocked+0xec/0x100

CPU: 6 PID: 45 Comm: cpuhp/6 Not tainted 6.8.0-rc5+ #1340

pc 90000000004c302c ra 90000000004c302c tp 90000001005bc000 sp 90000001005bfd20

a0 000000000000001b a1 900000000224c278 a2 90000001005bfb58 a3 900000000224c280

a4 900000000224c278 a5 90000001005bfb50 a6 0000000000000001 a7 0000000000000001

t0 ce87a4763eb5234a t1 ce87a4763eb5234a t2 0000000000000000 t3 0000000000000000

t4 0000000000000006 t5 0000000000000000 t6 0000000000000064 t7 0000000000001964

t8 000000000009ebf6 u0 9000000001f2a068 s9 0000000000000000 s0 900000000246a2d8

s1 ffffffffffffffff s2 ffffffffffffffff s3 90000000021518c0 s4

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, < 6.6.19	Affected

References

Ref git.kernel.org/stable/c/0d862db64d26c2905ba1a6a8561466b215b664c2 Ref git.kernel.org/stable/c/752cd08da320a667a833803a8fd6bb266114cce5 Ref git.kernel.org/stable/c/b1ec3d6b86fdd057559a5908e6668279bf770e0e Ref git.kernel.org/stable/c/0d862db64d26c2905ba1a6a8561466b215b664c2 Ref git.kernel.org/stable/c/752cd08da320a667a833803a8fd6bb266114cce5 Ref git.kernel.org/stable/c/b1ec3d6b86fdd057559a5908e6668279bf770e0e

Frequently Asked Questions

What is CVE-2024-26841?

CVE-2024-26841 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26841?

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-2024-26841?

How can CyberStrike help with CVE-2024-26841?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26841 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