What is CVE-2024-26856?

CVE-2024-26856 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2024-26856 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26856?

CVE-2024-26856 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-2024-26856?

No patch is currently available for CVE-2024-26856. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-26856 actively exploited?

CVE-2024-26856 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2024-26856

High

In the Linux kernel, the following vulnerability has been resolved: net: sparx5: Fix use after free inside sparx5_del_mact_entry Based on the static analyzis of the code it looks like when an entry from the MAC table was removed, the entry was still used after being freed. More precise the vid of the mac_entry was used after calling devm_kfree on the mac_entry. The fix consists in first using the vid of the mac_entry to delete the entry from the HW and after that to free it.

Package Linux Kernel

Published 2024-04-17

Last modified 2025-03-04

CVSS version 3.1

Patch available

Awaiting data

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-416

CVE-2024-26856 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2024-26856 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/0de693d68b0a18d5e256556c7c62d92cca35ad52
Patch
Kernel patch commit
https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025
Patch
Kernel patch commit
https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2024-26856

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-04-17

Modified 2025-03-04

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-26856?

CVE-2024-26856 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2024-26856 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26856?

CVE-2024-26856 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-2024-26856?

No patch is currently available for CVE-2024-26856. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-26856 actively exploited?

No — CVE-2024-26856 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →