What is CVE-2026-64184?

CVE-2026-64184 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.3 onward and patched in 6.6.142, 6.12.92, 6.18.34 and others. CVE-2026-64184 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-64184?

CVE-2026-64184 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-2026-64184?

Yes, CVE-2026-64184 has been patched. Fixed versions include 6.6.142, 6.12.92, 6.18.34 and others. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-64184 actively exploited?

CVE-2026-64184 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-64184

Medium

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break() damon_sysfs_memcg_path_to_id() breaks mem_cgroup_iter() loop without calling mem_cgroup_iter_break(). This leaks the cgroup reference. Fix the issue by calling mem_cgroup_iter_break() before the break. The issue was discovered [1] by Sashiko.

Package Linux Kernel

Published 2026-07-19

Last modified 2026-08-11

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 6.3 and later are affected. Fixed in 6.6.142, 6.12.92, 6.18.34, 7.0.11, 7.1 and their respective stable series.

Affected from

≥ 6.3

Fixed in

✓ 6.6.142 6.6.x ✓ 6.12.92 6.12.x ✓ 6.18.34 6.18.x ✓ 7.0.11 7.0.x ✓ 7.1

References

5 total

Kernel Git
https://git.kernel.org/stable/c/082351f9d40007414ad6af062b3a26fa02fd4b5f

Patch
Kernel Git
https://git.kernel.org/stable/c/1bd31386ec3b9ccec10c04429948a306ec5897c0

Patch
Kernel Git
https://git.kernel.org/stable/c/302e02f9ba49f81418ec2a749ae6f5cac1d424e9

Patch
Kernel Git
https://git.kernel.org/stable/c/30a361be33f3793b9ecbd10ab7be6d0564819b79

Patch
Kernel Git
https://git.kernel.org/stable/c/d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9

Patch

Details

CVE ID CVE-2026-64184

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-07-19

Modified 2026-08-11

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-64184?

CVE-2026-64184 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.3 onward and has been patched in 6.6.142, 6.12.92, 6.18.34 and others. CVE-2026-64184 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-64184?

CVE-2026-64184 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-2026-64184?

Yes. CVE-2026-64184 has been patched. Fixed versions include 6.6.142, 6.12.92, 6.18.34 and others. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-64184 actively exploited?

No. CVE-2026-64184 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.