What is CVE-2024-27009?

CVE-2024-27009 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Race Condition flaw (CWE-362), affecting Linux kernel versions from 5.15 onward and patched in 5.15.157, 6.1.88, 6.6.29 and others. CVE-2024-27009 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-27009?

CVE-2024-27009 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-27009?

Yes, CVE-2024-27009 has been patched. Fixed versions include 5.15.157, 6.1.88, 6.6.29 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-27009 actively exploited?

CVE-2024-27009 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2024-27009

Medium

In the Linux kernel, the following vulnerability has been resolved: s390/cio: fix race condition during online processing A race condition exists in ccw_device_set_online() that can cause the online process to fail, leaving the affected device in an inconsistent state. As a result, subsequent attempts to set that device online fail with return code ENODEV. The problem occurs when a path verification request arrives after a wait for final device state completed, but before the result state is evaluated. Fix this by ensuring that the CCW-device lock is held between determining final state and checking result state. Note that since: commit 2297791c92d0 ("s390/cio: dont unregister subchannel from child-drivers") path verification requests are much more likely to occur during boot, resulting in an increased chance of this race condition occurring.

Package Linux Kernel

Published 2024-05-01

Last modified 2025-11-04

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-362

CVE-2024-27009 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 5.15.157, 6.1.88, 6.6.29, 6.8.8, 6.9 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 5.15.157 5.15.x ✓ 6.1.88 6.1.x ✓ 6.6.29 6.6.x ✓ 6.8.8 6.8.x ✓ 6.9

References

8 total

Kernel Git
https://git.kernel.org/stable/c/2d8527f2f911fab84aec04df4788c0c23af3df48

Patch
Kernel Git
https://git.kernel.org/stable/c/2df56f4ea769ff81e51bbb05699989603bde9c49

Patch
Kernel Git
https://git.kernel.org/stable/c/3076b3c38a704e10df5e143c213653309d532538

Patch
Kernel Git
https://git.kernel.org/stable/c/559f3a6333397ab6cd4a696edd65a70b6be62c6e

Patch
Kernel Git
https://git.kernel.org/stable/c/a4234decd0fe429832ca81c4637be7248b88b49e

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2024-27009

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2024-05-01

Modified 2025-11-04

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-27009?

CVE-2024-27009 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 5.15 onward and has been patched in 5.15.157, 6.1.88, 6.6.29 and others. CVE-2024-27009 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-27009?

CVE-2024-27009 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-27009?

Yes. CVE-2024-27009 has been patched. Fixed versions include 5.15.157, 6.1.88, 6.6.29 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-27009 actively exploited?

No. CVE-2024-27009 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.