What is CVE-2024-56777?

CVE-2024-56777 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-2024-56777 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-56777?

CVE-2024-56777 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-2024-56777?

Yes, CVE-2024-56777 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-2024-56777 actively exploited?

CVE-2024-56777 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-56777

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers in sti_gdp_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-2024-56777 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-2024-56777 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/3cf2e7c448e246f7e700c7aa47450d1e27579559
Patch
Kernel patch commit
https://git.kernel.org/stable/c/997b64c3f4c1827c5cfda8ae7f5d13f78d28b541
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b79612ed6bc1a184c45427105c851b5b2d4342ca
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2024-56777

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-2024-56777?

CVE-2024-56777 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-2024-56777 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-56777?

CVE-2024-56777 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-2024-56777?

Yes — CVE-2024-56777 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-2024-56777 actively exploited?

No — CVE-2024-56777 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.