What is CVE-2024-53056?

CVE-2024-53056 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 5.15.54 onward and patched in 6.11.7 and 6.12. CVE-2024-53056 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-53056?

CVE-2024-53056 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-2024-53056?

Yes, CVE-2024-53056 has been patched. Fixed versions include 6.11.7 and 6.12. If you are running Linux kernel 5.15.54 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-53056 actively exploited?

CVE-2024-53056 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2024-53056

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix potential NULL dereference in mtk_crtc_destroy() In mtk_crtc_create(), if the call to mbox_request_channel() fails then we set the "mtk_crtc->cmdq_client.chan" pointer to NULL. In that situation, we do not call cmdq_pkt_create(). During the cleanup, we need to check if the "mtk_crtc->cmdq_client.chan" is NULL first before calling cmdq_pkt_destroy(). Calling cmdq_pkt_destroy() is unnecessary if we didn't call cmdq_pkt_create() and it will result in a NULL pointer dereference.

Package Linux Kernel

Published 2024-11-19

Last modified 2025-10-01

CVSS version 3.1

Patch available

Yes

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-476

CVE-2024-53056 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.15.54, 5.17 and later are affected. Fixed in 6.11.7, 6.12 and their respective stable series.

Affected from

≥ 5.15.54 ≥ 5.17

Fixed in

✓ 6.11.7 6.11.x ✓ 6.12

References

2 total

Kernel Git
https://git.kernel.org/stable/c/4018651ba5c409034149f297d3dd3328b91561fd

Patch
Kernel Git
https://git.kernel.org/stable/c/c60583a87cb4a85b69d1f448f0be5eb6ec62cbb2

Patch

Details

CVE ID CVE-2024-53056

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-11-19

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-53056?

CVE-2024-53056 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 5.15.54 onward and has been patched in 6.11.7 and 6.12. CVE-2024-53056 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-53056?

CVE-2024-53056 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-2024-53056?

Yes. CVE-2024-53056 has been patched. Fixed versions include 6.11.7 and 6.12. If you are running Linux kernel 5.15.54 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-53056 actively exploited?

No. CVE-2024-53056 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.