What is CVE-2024-42231?

CVE-2024-42231 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Incorrect Calculation flaw (CWE-682). CVE-2024-42231 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-42231?

CVE-2024-42231 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-42231?

No patch is currently available for CVE-2024-42231. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-42231 actively exploited?

CVE-2024-42231 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Incorrect Calculation (CWE-682)?

The product performs a calculation that generates incorrect or unintended results. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/682.html

CVE-2024-42231

Medium

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix calc_available_free_space() for zoned mode calc_available_free_space() returns the total size of metadata (or system) block groups, which can be allocated from unallocated disk space. The logic is wrong on zoned mode in two places. First, the calculation of data_chunk_size is wrong. We always allocate one zone as one chunk, and no partial allocation of a zone. So, we should use zone_size (= data_sinfo->chunk_size) as it is. Second, the result "avail" may not be zone aligned. Since we always allocate one zone as one chunk on zoned mode, returning non-zone size aligned bytes will result in less pressure on the async metadata reclaim process. This is serious for the nearly full state with a large zone size device. Allowing over-commit too much will result in less async reclaim work and end up in ENOSPC. We can align down to the zone size to avoid that.

Package Linux Kernel

Published 2024-07-30

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-682

CVE-2024-42231 is a Incorrect Calculation vulnerability

What is Incorrect Calculation?

The product performs a calculation that generates incorrect or unintended results. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2024-42231 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/64d2c847ba380e07b9072d65a50aa6469d2aa43f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8548903b1999bba02a2b894ad750ab8eb1f40307
Patch

Details

CVE ID CVE-2024-42231

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-07-30

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-42231?

CVE-2024-42231 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Incorrect Calculation flaw (CWE-682) . CVE-2024-42231 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-42231?

CVE-2024-42231 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-42231?

No patch is currently available for CVE-2024-42231. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-42231 actively exploited?

No — CVE-2024-42231 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Incorrect Calculation (CWE-682)?

The product performs a calculation that generates incorrect or unintended results. View CWE-682 on MITRE CWE →