What is CVE-2024-26622?

CVE-2024-26622 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-2024-26622 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26622?

CVE-2024-26622 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-2024-26622?

No patch is currently available for CVE-2024-26622. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-26622 actively exploited?

CVE-2024-26622 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-2024-26622

High

In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems.

Package Linux Kernel

Published 2024-03-04

Last modified 2025-11-04

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-2024-26622 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-2024-26622 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
https://lists.fedoraproject.org/archives/list/[email protected]/message/IVVYSTEVMPYGF6GDSOD44MUXZXAZHOHB/
Kernel patch commit
https://git.kernel.org/stable/c/2caa605079488da9601099fbda460cfc1702839f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3bfe04c1273d30b866f4c7c238331ed3b08e5824
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2024-26622

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-03-04

Modified 2025-11-04

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-26622?

CVE-2024-26622 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-2024-26622 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26622?

CVE-2024-26622 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-2024-26622?

No patch is currently available for CVE-2024-26622. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-26622 actively exploited?

No — CVE-2024-26622 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 →