What is CVE-2024-56709?

CVE-2024-56709 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.14 onward and patched in 6.1.122, 6.6.68, 6.12.7 and others. CVE-2024-56709 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-56709?

CVE-2024-56709 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-2024-56709?

Yes, CVE-2024-56709 has been patched. Fixed versions include 6.1.122, 6.6.68, 6.12.7 and others. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-56709 actively exploited?

CVE-2024-56709 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-56709

Medium

In the Linux kernel, the following vulnerability has been resolved: io_uring: check if iowq is killed before queuing task work can be executed after the task has gone through io_uring termination, whether it's the final task_work run or the fallback path. In this case, task work will find ->io_wq being already killed and null'ed, which is a problem if it then tries to forward the request to io_queue_iowq(). Make io_queue_iowq() fail requests in this case. Note that it also checks PF_KTHREAD, because the user can first close a DEFER_TASKRUN ring and shortly after kill the task, in which case ->iowq check would race.

Package Linux Kernel

Published 2024-12-29

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

Affected versions

Linux kernel versions 5.14 and later are affected. Fixed in 6.1.122, 6.6.68, 6.12.7, 6.13 and their respective stable series.

Affected from

≥ 5.14

Fixed in

✓ 6.1.122 6.1.x ✓ 6.6.68 6.6.x ✓ 6.12.7 6.12.x ✓ 6.13

References

The following references provide additional information about CVE-2024-56709 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/2ca94c8de36091067b9ce7527ae8db3812d38781
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4f95a2186b7f2af09331e1e8069bcaf34fe019cf
Patch
Kernel patch commit
https://git.kernel.org/stable/c/534d59ab38010aada88390db65985e65d0de7d9e
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2024-56709

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-12-29

Modified 2025-11-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-56709?

CVE-2024-56709 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.14 onward and has been patched in 6.1.122, 6.6.68, 6.12.7 and others. CVE-2024-56709 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-56709?

CVE-2024-56709 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-2024-56709?

Yes — CVE-2024-56709 has been patched. Fixed versions include 6.1.122, 6.6.68, 6.12.7 and others. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-56709 actively exploited?

No — CVE-2024-56709 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.