What is CVE-2024-46844?

CVE-2024-46844 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Access of Uninitialized Pointer flaw (CWE-824), affecting Linux kernel versions from 3.4 onward and patched in 4.19.322, 5.4.284, 5.10.226 and others. CVE-2024-46844 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-46844?

CVE-2024-46844 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-2024-46844?

Yes, CVE-2024-46844 has been patched. Fixed versions include 4.19.322, 5.4.284, 5.10.226 and others. If you are running Linux kernel 3.4 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-46844 actively exploited?

CVE-2024-46844 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Access of Uninitialized Pointer (CWE-824)?

The product accesses or uses a pointer that has not been initialised, leading to undefined behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/824.html

CVE-2024-46844

High

In the Linux kernel, the following vulnerability has been resolved: um: line: always fill *error_out in setup_one_line() The pointer isn't initialized by callers, but I have encountered cases where it's still printed; initialize it in all possible cases in setup_one_line().

Package Linux Kernel

Published 2024-09-27

Last modified 2025-11-03

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-824

CVE-2024-46844 is a Access of Uninitialized Pointer vulnerability

What is Access of Uninitialized Pointer?

The product accesses or uses a pointer that has not been initialised, leading to undefined behaviour. Learn more on MITRE CWE

Affected versions

Linux kernel versions 3.4 and later are affected. Fixed in 4.19.322, 5.4.284, 5.10.226, 5.15.167, 6.1.110, 6.6.51, 6.10.10, 6.11 and their respective stable series.

Affected from

≥ 3.4

Fixed in

✓ 4.19.322 4.19.x ✓ 5.4.284 5.4.x ✓ 5.10.226 5.10.x ✓ 5.15.167 5.15.x ✓ 6.1.110 6.1.x ✓ 6.6.51 6.6.x ✓ 6.10.10 6.10.x ✓ 6.11

References

The following references provide additional information about CVE-2024-46844 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/2024/10/msg00003.html
Debian Security
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Kernel patch commit
https://git.kernel.org/stable/c/289979d64573f43df1d0e6bc6435de63a0d69cdf
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3bedb7ce080690d0d6172db790790c1219bcbdd5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/43f782c27907f306c664b6614fd6f264ac32cce6
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2024-46844

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-09-27

Modified 2025-11-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-46844?

CVE-2024-46844 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Access of Uninitialized Pointer flaw (CWE-824) . It affects Linux kernel versions from 3.4 onward and has been patched in 4.19.322, 5.4.284, 5.10.226 and others. CVE-2024-46844 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-46844?

CVE-2024-46844 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-2024-46844?

Yes — CVE-2024-46844 has been patched. Fixed versions include 4.19.322, 5.4.284, 5.10.226 and others. If you are running Linux kernel 3.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-46844 actively exploited?

No — CVE-2024-46844 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Access of Uninitialized Pointer (CWE-824)?

The product accesses or uses a pointer that has not been initialised, leading to undefined behaviour. View CWE-824 on MITRE CWE →