{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64184", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.039Z", "datePublished": "2026-07-19T15:41:06.615Z", "dateUpdated": "2026-07-19T15:41:06.615Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:41:06.615Z"}, "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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/sysfs-schemes.c"], "versions": [{"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0", "lessThan": "082351f9d40007414ad6af062b3a26fa02fd4b5f", "status": "affected", "versionType": "git"}, {"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0", "lessThan": "30a361be33f3793b9ecbd10ab7be6d0564819b79", "status": "affected", "versionType": "git"}, {"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0", "lessThan": "302e02f9ba49f81418ec2a749ae6f5cac1d424e9", "status": "affected", "versionType": "git"}, {"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0", "lessThan": "1bd31386ec3b9ccec10c04429948a306ec5897c0", "status": "affected", "versionType": "git"}, {"version": "29cbb9a13f05b20f0777c60db9603730b487a4e0", "lessThan": "d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/sysfs-schemes.c"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.142", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.92", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.6.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/082351f9d40007414ad6af062b3a26fa02fd4b5f"}, {"url": "https://git.kernel.org/stable/c/30a361be33f3793b9ecbd10ab7be6d0564819b79"}, {"url": "https://git.kernel.org/stable/c/302e02f9ba49f81418ec2a749ae6f5cac1d424e9"}, {"url": "https://git.kernel.org/stable/c/1bd31386ec3b9ccec10c04429948a306ec5897c0"}, {"url": "https://git.kernel.org/stable/c/d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9"}], "title": "mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()", "id": "2502493", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502493"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()\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.\nThe issue was discovered [1] by Sashiko.", "A flaw was found in the Linux kernel's Data Access MONitor (DAMON) sysfs schemes. The `damon_sysfs_memcg_path_to_id()` function does not correctly release a cgroup reference, leading to a resource leak. This vulnerability could allow a local attacker to exhaust system resources, potentially causing a denial of service."], "name": "CVE-2026-64184", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64184\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64184\nhttps://lore.kernel.org/linux-cve-announce/2026071939-CVE-2026-64184-0f6b@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[29cbb9a13f05b20f0777c60db9603730b487a4e0,082351f9d40007414ad6af062b3a26fa02fd4b5f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[29cbb9a13f05b20f0777c60db9603730b487a4e0,30a361be33f3793b9ecbd10ab7be6d0564819b79)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[29cbb9a13f05b20f0777c60db9603730b487a4e0,302e02f9ba49f81418ec2a749ae6f5cac1d424e9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[29cbb9a13f05b20f0777c60db9603730b487a4e0,1bd31386ec3b9ccec10c04429948a306ec5897c0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[29cbb9a13f05b20f0777c60db9603730b487a4e0,d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.3"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.3)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.142,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.92,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.34,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.11,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-21T19:45:03.098186+00:00", "updated": "2026-07-29T01:00:14.266327+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}