What is CVE-2024-42314?

CVE-2024-42314 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 5.16 onward and patched in 6.1.108, 6.6.44, 6.10.3 and others. CVE-2024-42314 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-42314?

CVE-2024-42314 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2024-42314?

Yes, CVE-2024-42314 has been patched. Fixed versions include 6.1.108, 6.6.44, 6.10.3 and others. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-42314 actively exploited?

CVE-2024-42314 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2024-42314

High

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when adding pages to compressed bio At add_ra_bio_pages() we are accessing the extent map to calculate 'add_size' after we dropped our reference on the extent map, resulting in a use-after-free. Fix this by computing 'add_size' before dropping our extent map reference.

Package Linux Kernel

Published 2024-08-17

Last modified 2026-03-27

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2024-42314 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.16 and later are affected. Fixed in 6.1.108, 6.6.44, 6.10.3, 6.11 and their respective stable series.

Affected from

≥ 5.16

Fixed in

✓ 6.1.108 6.1.x ✓ 6.6.44 6.6.x ✓ 6.10.3 6.10.x ✓ 6.11

References

5 total

Kernel Git
https://git.kernel.org/stable/c/8e7860543a94784d744c7ce34b78a2e11beefa5c

Patch
Kernel Git
https://git.kernel.org/stable/c/b7859ff398b6b656e1689daa860eb34837b4bb89

Patch
Kernel Git
https://git.kernel.org/stable/c/c1cc3326e27b0bd7a2806b40bc48e49afaf951e7

Patch
Kernel Git
https://git.kernel.org/stable/c/c205565e0f2f439f278a4a94ee97b67ef7b56ae8

Patch
Debian Security
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Mailing List Third Party Advisory

Details

CVE ID CVE-2024-42314

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-08-17

Modified 2026-03-27

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-42314?

CVE-2024-42314 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 5.16 onward and has been patched in 6.1.108, 6.6.44, 6.10.3 and others. CVE-2024-42314 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-42314?

CVE-2024-42314 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2024-42314?

Yes. CVE-2024-42314 has been patched. Fixed versions include 6.1.108, 6.6.44, 6.10.3 and others. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-42314 actively exploited?

No. CVE-2024-42314 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.