CVE-2026-64184 Details
Description
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.
A vulnerability in the Linux kernel's memory management subsystem, specifically within the DAMON (Data Access Monitor) framework, has been addressed. The issue arose because the function 'damon_sysfs_memcg_path_to_id()'' improperly exited a loop iterating over memory cgroups without calling 'mem_cgroup_iter_break()'. This oversight led to a leak of the cgroup reference. The vulnerability affects the Linux kernel stable tree, particularly versions 6.3.x. The problem has been fixed by ensuring 'mem_cgroup_iter_break()' is called before exiting the loop, thereby preventing the reference leak.
Users can upgrade to the patched version of the Linux kernel available in the Linux Kernel Git Repository under the stable branch. The specific commit addressing this vulnerability is '082351f9d40007414ad6af062b3a26fa02fd4b5f', which can be downloaded as a tarball.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/082351f9d40007414ad6af062b3a26fa02fd4b5f | kernel.org | Patch |
| https://git.kernel.org/stable/c/1bd31386ec3b9ccec10c04429948a306ec5897c0 | kernel.org | Patch |
| https://git.kernel.org/stable/c/302e02f9ba49f81418ec2a749ae6f5cac1d424e9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/30a361be33f3793b9ecbd10ab7be6d0564819b79 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.3, < 6.6.142 >= 6.7, < 6.12.92 >= 6.13, < 6.18.34 >= 6.19, < 7.0.11 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 11, 2026 | Initial Analysis | [email protected] |
| Jul 19, 2026 | New CVE Received | kernel.org |