CVE-2026-64184

mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()

MEDIUM

5.5

CVSS Score

Published: July 19, 2026 at 03:41 PM UTC

Updated: August 11, 2026 at 08:18 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

6.13 ≤ v < 6.18.346.19 ≤ v < 7.0.116.3 ≤ v < 6.12.926.3 ≤ v < 6.18.346.3 ≤ v < 6.6.1426.3 ≤ v < 7.0.116.3 ≤ v < 7.16.7 ≤ v < 6.12.9229cbb9a13f05b20f0777c60db9603730b487a4e07.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4

Vendor states this is fixed in 082351f9d40007414ad6af062b3a26fa02fd4b5f (fixed)

Vendor states this is fixed in 1bd31386ec3b9ccec10c04429948a306ec5897c0 (fixed)

Vendor states this is fixed in 302e02f9ba49f81418ec2a749ae6f5cac1d424e9 (fixed)

Vendor states this is fixed in 30a361be33f3793b9ecbd10ab7be6d0564819b79 (fixed)

Vendor states this is fixed in d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9 (fixed)

Vendor states this is fixed in 6.12.92 (unaffected)

Vendor states this is fixed in 6.18.34 (unaffected)

Vendor states this is fixed in 6.3 (unaffected)

Vendor states this is fixed in 6.6.142 (unaffected)

Vendor states this is fixed in 7.0.11 (unaffected)

Vendor states this is fixed in 7.1 (unaffected)