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CVE-2024-44968

5.5 · MEDIUM
Published Sep 4, 2024 linux EPSS 0.22% (13th pctl)

Overview

CVE-2024-44968 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 4, 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:

tick/broadcast: Move per CPU pointer access into the atomic section

The recent fix for making the take over of the broadcast timer more

reliable retrieves a per CPU pointer in preemptible context.

This went unnoticed as compilers hoist the access into the non-preemptible

region where the pointer is actually used. But of course it's valid that

the compiler keeps it at the place where the code puts it which rightfully

triggers:

BUG: using smp_processor_id() in preemptible [00000000] code:

caller is hotplug_cpu__broadcast_tick_pull+0x1c/0xc0

Move it to the actual usage site which is in a non-preemptible region.

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 >= 6.1.103, < 6.1.105 Affected

References

Ref git.kernel.org/stable/c/541a900d245536d4809cb1aa322c3fcc2cdb58a6 Ref git.kernel.org/stable/c/668c6c4a7e9e9f081c06b70f30104fb7013437ed Ref git.kernel.org/stable/c/6881e75237a84093d0986f56223db3724619f26e Ref git.kernel.org/stable/c/7b3ec186ba93e333e9efe7254e7e31c1828e5d2d Ref git.kernel.org/stable/c/7dd12f85f150010ef7518201c63fa7e395f5c3e9 Ref git.kernel.org/stable/c/b9d604933d5fd72dd37f24e1dc35f778297d745a Ref git.kernel.org/stable/c/f54abf332a2bc0413cfa8bd6a8511f7aa99faea0 Ref git.kernel.org/stable/c/f91fb47ecacc178a83a77eeebd25cbaec18c01d6 Ref lists.debian.org/debian-lts-announce/2024/10/msg00003.html Ref lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-44968?

CVE-2024-44968 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 4, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-44968?

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-2024-44968?

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-2024-44968?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-44968 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.

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