What is CVE-2024-27023?

CVE-2024-27023 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.1.75 onward and patched in 6.1.80, 6.6.19 and 6.7.7. CVE-2024-27023 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-27023?

CVE-2024-27023 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-2024-27023?

Yes, CVE-2024-27023 has been patched. Fixed versions include 6.1.80, 6.6.19 and 6.7.7. If you are running Linux kernel 6.1.75 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-27023 actively exploited?

CVE-2024-27023 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-27023

Medium

In the Linux kernel, the following vulnerability has been resolved: md: Fix missing release of 'active_io' for flush submit_flushes atomic_set(&mddev->flush_pending, 1); rdev_for_each_rcu(rdev, mddev) atomic_inc(&mddev->flush_pending); bi->bi_end_io = md_end_flush submit_bio(bi); /* flush io is done first */ md_end_flush if (atomic_dec_and_test(&mddev->flush_pending)) percpu_ref_put(&mddev->active_io) -> active_io is not released if (atomic_dec_and_test(&mddev->flush_pending)) -> missing release of active_io For consequence, mddev_suspend() will wait for 'active_io' to be zero forever. Fix this problem by releasing 'active_io' in submit_flushes() if 'flush_pending' is decreased to zero.

Package Linux Kernel

Published 2024-05-01

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 6.1.75, 6.6.14, 6.7.2 and later are affected. Fixed in 6.1.80, 6.6.19, 6.7.7 and their respective stable series.

Affected from

≥ 6.1.75 ≥ 6.6.14 ≥ 6.7.2

Fixed in

✓ 6.1.80 6.1.x ✓ 6.6.19 6.6.x ✓ 6.7.7 6.7.x

References

4 total

Kernel Git
https://git.kernel.org/stable/c/02dad157ba11064d073f5499dc33552b227d5d3a

Patch
Kernel Git
https://git.kernel.org/stable/c/11f81438927f84edfaaeb5d5f10856c3a1c1fc82

Patch
Kernel Git
https://git.kernel.org/stable/c/6b2ff10390b19a2364af622b6666b690443f9f3f

Patch
Kernel Git
https://git.kernel.org/stable/c/855678ed8534518e2b428bcbcec695de9ba248e8

Patch

Details

CVE ID CVE-2024-27023

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-01

Modified 2025-09-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-27023?

CVE-2024-27023 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.1.75 onward and has been patched in 6.1.80, 6.6.19 and 6.7.7. CVE-2024-27023 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-27023?

CVE-2024-27023 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-2024-27023?

Yes. CVE-2024-27023 has been patched. Fixed versions include 6.1.80, 6.6.19 and 6.7.7. If you are running Linux kernel 6.1.75 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-27023 actively exploited?

No. CVE-2024-27023 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.