CVE-2024-56774

5.5 · MEDIUM

Published Jan 8, 2025 linux CWE-476 EPSS 0.21% (11th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-56774 is a medium-severity vulnerability affecting linux linux_kernel. It was published on January 8, 2025 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: add a sanity check for btrfs root in btrfs_search_slot()

Syzbot reports a null-ptr-deref in btrfs_search_slot().

The reproducer is using rescue=ibadroots, and the extent tree root is

corrupted thus the extent tree is NULL.

When scrub tries to search the extent tree to gather the needed extent

info, btrfs_search_slot() doesn't check if the target root is NULL or

not, resulting the null-ptr-deref.

Add sanity check for btrfs root before using it in btrfs_search_slot().

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	>= 5.11, < 5.15.174	Affected

References

Ref git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4 Ref git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab Ref git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece Ref git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b Ref git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6 Ref lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Frequently Asked Questions

What is CVE-2024-56774?

CVE-2024-56774 is a medium-severity vulnerability affecting linux linux_kernel. It was published on January 8, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56774?

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-2024-56774?

How can CyberStrike help with CVE-2024-56774?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-56774 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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