CVE-2024-44963

5.5 · MEDIUM

Published Sep 4, 2024 linux EPSS 0.24% (15th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-44963 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:

btrfs: do not BUG_ON() when freeing tree block after error

When freeing a tree block, at btrfs_free_tree_block(), if we fail to

create a delayed reference we don't deal with the error and just do a

BUG_ON(). The error most likely to happen is -ENOMEM, and we have a

comment mentioning that only -ENOMEM can happen, but that is not true,

because in case qgroups are enabled any error returned from

btrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned

from btrfs_search_slot() for example) can be propagated back to

btrfs_free_tree_block().

So stop doing a BUG_ON() and return the error to the callers and make

them abort the transaction to prevent leaking space. Syzbot was

triggering this, likely due to memory allocation failure injection.

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, < 6.10.5	Affected

References

Ref git.kernel.org/stable/c/22d907bcd283d69d5e60497fc0d51969545c583b Ref git.kernel.org/stable/c/98251cd60b4d702a8a81de442ab621e83a3fb24f Ref git.kernel.org/stable/c/bb3868033a4cccff7be57e9145f2117cbdc91c11

Frequently Asked Questions

What is CVE-2024-44963?

CVE-2024-44963 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-2024-44963?

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-2024-44963?

How can CyberStrike help with CVE-2024-44963?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-44963 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