CVE-2026-46067

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46067", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.095Z", "datePublished": "2026-05-27T12:57:45.648Z", "dateUpdated": "2026-06-14T17:51:55.381Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:51:55.381Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/core: validate damos_quota_goal->nid for node_memcg_{used,free}_bp\n\nUsers can set damos_quota_goal->nid with arbitrary value for\nnode_memcg_{used,free}_bp. But DAMON core is using those for NODE-DATA()\nwithout a validation of the value. This can result in out of bounds\nmemory access. The issue can actually triggered using DAMON user-space\ntool (damo), like below.\n\n $ sudo mkdir /sys/fs/cgroup/foo\n $ sudo ./damo start --damos_action stat --damos_quota_interval 1s \\\n --damos_quota_goal node_memcg_used_bp 50% -1 /foo\n $ sudo dmseg\n [...]\n [ 524.181426] Unable to handle kernel paging request at virtual address 0000000000002c00\n\nFix this issue by adding the validation of the given node id. If an\ninvalid node id is given, it returns 0% for used memory ratio, and 100%\nfor free memory ratio."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/core.c"], "versions": [{"version": "b74a120bcf50787e5b9a2c3dcff999f9836ce1db", "lessThan": "da10db73ada26345244ea5dc52f974692bd05f66", "status": "affected", "versionType": "git"}, {"version": "b74a120bcf50787e5b9a2c3dcff999f9836ce1db", "lessThan": "a34dac6482e53e2c76944f25b1489b9b7da3a6e6", "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/core.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "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": "6.19", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/da10db73ada26345244ea5dc52f974692bd05f66"}, {"url": "https://git.kernel.org/stable/c/a34dac6482e53e2c76944f25b1489b9b7da3a6e6"}], "title": "mm/damon/core: validate damos_quota_goal->nid for node_memcg_{used,free}_bp", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["mm/damon/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "da10db73ada26345244ea5dc52f974692bd05f66", "status": "affected", "version": "b74a120bcf50787e5b9a2c3dcff999f9836ce1db", "versionType": "git"}, {"lessThan": "a34dac6482e53e2c76944f25b1489b9b7da3a6e6", "status": "affected", "version": "b74a120bcf50787e5b9a2c3dcff999f9836ce1db", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["mm/damon/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.19"}, {"lessThan": "6.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/core: validate damos_quota_goal->nid for node_memcg_{used,free}_bp\n\nUsers can set damos_quota_goal->nid with arbitrary value for\nnode_memcg_{used,free}_bp. But DAMON core is using those for NODE-DATA()\nwithout a validation of the value. This can result in out of bounds\nmemory access. The issue can actually triggered using DAMON user-space\ntool (damo), like below.\n\n $ sudo mkdir /sys/fs/cgroup/foo\n $ sudo ./damo start --damos_action stat --damos_quota_interval 1s \\\n --damos_quota_goal node_memcg_used_bp 50% -1 /foo\n $ sudo dmseg\n [...]\n [ 524.181426] Unable to handle kernel paging request at virtual address 0000000000002c00\n\nFix this issue by adding the validation of the given node id. If an\ninvalid node id is given, it returns 0% for used memory ratio, and 100%\nfor free memory ratio."}], "id": "CVE-2026-46067", "lastModified": "2026-06-24T17:04:01.583", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-05-27T14:17:27.643", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a34dac6482e53e2c76944f25b1489b9b7da3a6e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da10db73ada26345244ea5dc52f974692bd05f66"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mm/damon/core: validate damos_quota_goal->nid for node_memcg_{used,free}_bp", "id": "2481995", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481995"}, "csaw": false, "cwe": "CWE-1285", "details": ["A flaw was found in the Linux kernel's DAMON (Data Access MONitor) core component. A local user could exploit this vulnerability by providing an invalid node identifier (`nid`) when configuring memory usage tracking goals. This lack of validation allows for out-of-bounds memory access, which can lead to a system crash and result in a denial of service."], "name": "CVE-2026-46067", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46067\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46067\nhttps://lore.kernel.org/linux-cve-announce/2026052757-CVE-2026-46067-aef8@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[b74a120bcf50787e5b9a2c3dcff999f9836ce1db,da10db73ada26345244ea5dc52f974692bd05f66)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[b74a120bcf50787e5b9a2c3dcff999f9836ce1db,a34dac6482e53e2c76944f25b1489b9b7da3a6e6)"}}], "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": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.4,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1-rc1,*]"}}], "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": "2026-05-27T20:15:16.212002+00:00", "updated": "2026-08-12T03:30:04.366861+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-125", "CWE-1285"]}