CVE-2026-64184
Full vulnerability record from the local CVENow database.
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.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-07-19 16:18:00.817000
Last modified
2026-11-06 17:18:39.613000
View original CVE JSON
{
"id": "CVE-2026-64184",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-07-19T16:18:00.817",
"lastModified": "2026-11-06T17:18:39.613",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()\n\ndamon_sysfs_memcg_path_to_id() breaks mem_cgroup_iter() loop without\ncalling mem_cgroup_iter_break(). This leaks the cgroup reference. Fix\nthe issue by calling mem_cgroup_iter_break() before the break.\n\nThe issue was discovered [1] by Sashiko."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"mm/damon/sysfs-schemes.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
"lessThan": "082351f9d40007414ad6af062b3a26fa02fd4b5f",
"versionType": "git",
"status": "affected"
},
{
"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
"lessThan": "30a361be33f3793b9ecbd10ab7be6d0564819b79",
"versionType": "git",
"status": "affected"
},
{
"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
"lessThan": "302e02f9ba49f81418ec2a749ae6f5cac1d424e9",
"versionType": "git",
"status": "affected"
},
{
"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
"lessThan": "1bd31386ec3b9ccec10c04429948a306ec5897c0",
"versionType": "git",
"status": "affected"
},
{
"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
"lessThan": "d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"mm/damon/sysfs-schemes.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.3",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.3",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.142",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.92",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.34",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.0.11",
"lessThanOrEqual": "7.0.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.1",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-06T16:31:38.778626Z",
"id": "CVE-2026-64184",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.3",
"versionEndExcluding": "6.6.142",
"matchCriteriaId": "A310DCC9-E1E3-433F-A602-DB578E3297D3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.7",
"versionEndExcluding": "6.12.92",
"matchCriteriaId": "9CB90BD9-95B7-4D7F-9F17-4ECE6CFB66C9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13",
"versionEndExcluding": "6.18.34",
"matchCriteriaId": "A4B1EF6D-18D7-4838-BC37-7499D5DCC3C0"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.19",
"versionEndExcluding": "7.0.11",
"matchCriteriaId": "0520D091-FC52-4A50-AF07-70AE7D08B750"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
"matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*",
"matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*",
"matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*",
"matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/082351f9d40007414ad6af062b3a26fa02fd4b5f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/1bd31386ec3b9ccec10c04429948a306ec5897c0",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/302e02f9ba49f81418ec2a749ae6f5cac1d424e9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/30a361be33f3793b9ecbd10ab7be6d0564819b79",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
}
]
}