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). 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?

No patch is currently available for CVE-2024-42314. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

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

Awaiting data

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

References

The following references provide additional information about CVE-2024-42314 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

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

Mailing List Third Party Advisory
Kernel patch commit
https://git.kernel.org/stable/c/8e7860543a94784d744c7ce34b78a2e11beefa5c
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b7859ff398b6b656e1689daa860eb34837b4bb89
Patch
Kernel patch commit
https://git.kernel.org/stable/c/c1cc3326e27b0bd7a2806b40bc48e49afaf951e7
Patch

4 patch commits total View all on NVD

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 Awaiting data

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) . 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?

No patch is currently available for CVE-2024-42314. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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.
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. View CWE-416 on MITRE CWE →