CVE-2024-23850: linux kernel — Fix

Description

In btrfs_get_root_ref in fs/btrfs/disk-io.c in the Linux kernel through 6.7.1, there can be an assertion failure and crash because a subvolume can be read out too soon after its root item is inserted upon subvolume creation.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-617 CWE-617

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 6.7.1

References

Advisories & Patches

https://lore.kernel.org/all/6a80cb4b32af89787dadee728310e5e2ca85343f.1705741883.git.wqu%40suse.com/ https://lore.kernel.org/lkml/CALGdzuo6awWdau3X=8XK547x2vX_-VoFmH1aPsqosRTQ5WzJVA%40mail.gmail.com/ https://lore.kernel.org/all/6a80cb4b32af89787dadee728310e5e2ca85343f.1705741883.git.wqu%40suse.com/ https://lore.kernel.org/lkml/CALGdzuo6awWdau3X=8XK547x2vX_-VoFmH1aPsqosRTQ5WzJVA%40mail.gmail.com/

Other References

https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZOU3745CWCDZ7EMKMXB2OEEIB5Q3IWM/ https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZOU3745CWCDZ7EMKMXB2OEEIB5Q3IWM/ https://lists.fedoraproject.org/archives/list/[email protected]/message/EZOU3745CWCDZ7EMKMXB2OEEIB5Q3IWM/

Frequently Asked Questions

What is CVE-2024-23850? +

In btrfs_get_root_ref in fs/btrfs/disk-io.c in the Linux kernel through 6.7.1, there can be an assertion failure and crash because a subvolume can be read out too soon after its root item is inserted upon subvolume creation. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-23850? +

CVE-2024-23850 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-23850? +

CVE-2024-23850 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-23850? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-23850