What is CVE-2024-56778?

CVE-2024-56778 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.6 onward and patched in 5.15.174, 6.1.120, 6.6.64 and others. CVE-2024-56778 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-56778?

CVE-2024-56778 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-2024-56778?

Yes, CVE-2024-56778 has been patched. Fixed versions include 5.15.174, 6.1.120, 6.6.64 and others. If you are running Linux kernel 4.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-56778 actively exploited?

CVE-2024-56778 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-56778

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure.

Package Linux Kernel

Published 2025-01-08

Last modified 2025-11-03

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-754

CVE-2024-56778 is classified as CWE-754

See CWE-754 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 4.6 and later are affected. Fixed in 5.15.174, 6.1.120, 6.6.64, 6.12.4, 6.13 and their respective stable series.

Affected from

≥ 4.6

Fixed in

✓ 5.15.174 5.15.x ✓ 6.1.120 6.1.x ✓ 6.6.64 6.6.x ✓ 6.12.4 6.12.x ✓ 6.13

References

The following references provide additional information about CVE-2024-56778 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/2025/03/msg00001.html
Kernel patch commit
https://git.kernel.org/stable/c/31c857e7496d34e5a32a6f75bc024d0b06fd646a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6b0d0d6e9d3c26697230bf7dc9e6b52bdb24086f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/82a5312f874fb18f045d9658e9bd290e3b0621c0
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2024-56778

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-01-08

Modified 2025-11-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-56778?

CVE-2024-56778 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.6 onward and has been patched in 5.15.174, 6.1.120, 6.6.64 and others. CVE-2024-56778 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-56778?

CVE-2024-56778 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-2024-56778?

Yes — CVE-2024-56778 has been patched. Fixed versions include 5.15.174, 6.1.120, 6.6.64 and others. If you are running Linux kernel 4.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-56778 actively exploited?

No — CVE-2024-56778 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.