CVE-2024-40969

5.5 · MEDIUM

Published Jul 12, 2024 linux CWE-667 EPSS 0.22% (12th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-40969 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 12, 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:

f2fs: don't set RO when shutting down f2fs

Shutdown does not check the error of thaw_super due to readonly, which

causes a deadlock like below.

f2fs_ioc_shutdown(F2FS_GOING_DOWN_FULLSYNC) issue_discard_thread

- bdev_freeze

- freeze_super

- f2fs_stop_checkpoint()

- f2fs_handle_critical_error - sb_start_write

- set RO - waiting

- bdev_thaw

- thaw_super_locked

- return -EINVAL, if sb_rdonly()

- f2fs_stop_discard_thread

-> wait for kthread_stop(discard_thread);

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, < 6.6.36	Affected

References

Ref git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499a Ref git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7 Ref git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563 Ref git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499a Ref git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7 Ref git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563

Frequently Asked Questions

What is CVE-2024-40969?

CVE-2024-40969 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 12, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-40969?

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-2024-40969?

How can CyberStrike help with CVE-2024-40969?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-40969 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.

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HackBrowser

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