What is CVE-2024-27409?

CVE-2024-27409 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.5 onward and patched in 6.6.21, 6.7.9 and 6.8. CVE-2024-27409 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-27409?

CVE-2024-27409 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-2024-27409?

Yes, CVE-2024-27409 has been patched. Fixed versions include 6.6.21, 6.7.9 and 6.8. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-27409 actively exploited?

CVE-2024-27409 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-27409

Medium

In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: HDMA: Add sync read before starting the DMA transfer in remote setup The Linked list element and pointer are not stored in the same memory as the HDMA controller register. If the doorbell register is toggled before the full write of the linked list a race condition error will occur. In remote setup we can only use a readl to the memory to assure the full write has occurred.

Package Linux Kernel

Published 2024-05-17

Last modified 2025-09-18

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

Affected versions

Linux kernel versions 6.5 and later are affected. Fixed in 6.6.21, 6.7.9, 6.8 and their respective stable series.

Affected from

≥ 6.5

Fixed in

✓ 6.6.21 6.6.x ✓ 6.7.9 6.7.x ✓ 6.8

References

3 total

Kernel Git
https://git.kernel.org/stable/c/17be6f5cb223f22e4733ed8fe8b2247cbb677716

Patch
Kernel Git
https://git.kernel.org/stable/c/227ef58a9b0c372efba422e8886a8015a1509eba

Patch
Kernel Git
https://git.kernel.org/stable/c/712a92a48158e02155b4b6b21e03a817f78c9b7e

Patch

Details

CVE ID CVE-2024-27409

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-17

Modified 2025-09-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-27409?

CVE-2024-27409 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.5 onward and has been patched in 6.6.21, 6.7.9 and 6.8. CVE-2024-27409 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-27409?

CVE-2024-27409 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-2024-27409?

Yes. CVE-2024-27409 has been patched. Fixed versions include 6.6.21, 6.7.9 and 6.8. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-27409 actively exploited?

No. CVE-2024-27409 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.