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 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.
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/082351f9d40007414ad6af062b3a26fa02fd4b5f
- https://git.kernel.org/stable/c/1bd31386ec3b9ccec10c04429948a306ec5897c0
- https://git.kernel.org/stable/c/302e02f9ba49f81418ec2a749ae6f5cac1d424e9
- https://git.kernel.org/stable/c/30a361be33f3793b9ecbd10ab7be6d0564819b79
- https://git.kernel.org/stable/c/d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64184.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-64184