CVE-2026-64184: mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/sysfs-schemes: call missing memcgroupiterbreak()
damonsysfsmemcgpathtoid() breaks memcgroupiter() loop without calling memcgroupiterbreak(). This leaks the cgroup reference. Fix the issue by calling memcgroupiterbreak() before the break.
The issue was discovered [1] by Sashiko.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-64184?
The severity of CVE-2026-64184 is rated as 12.
How do I fix CVE-2026-64184?
To fix CVE-2026-64184, ensure that mem_cgroup_iter_break() is called within the damon_sysfs_memcg_path_to_id() function.
What does CVE-2026-64184 affect?
CVE-2026-64184 affects the Linux kernel's memory management, specifically related to the mem_cgroup_iter() loop.
What potential consequence does CVE-2026-64184 have?
CVE-2026-64184 can lead to memory leaks due to unbroken cgroup references.
When was CVE-2026-64184 published?
CVE-2026-64184 was published on July 19, 2026.