{"api_version":"1","generated_at":"2026-07-16T01:44:32+00:00","cve":"CVE-2026-46067","urls":{"html":"https://cve.report/CVE-2026-46067","api":"https://cve.report/api/cve/CVE-2026-46067.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46067","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46067"},"summary":{"title":"mm/damon/core: validate damos_quota_goal->nid for node_memcg_{used,free}_bp","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:27","updated_at":"2026-06-24 17:04:01"},"problem_types":["CWE-125"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/a34dac6482e53e2c76944f25b1489b9b7da3a6e6","name":"https://git.kernel.org/stable/c/a34dac6482e53e2c76944f25b1489b9b7da3a6e6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/da10db73ada26345244ea5dc52f974692bd05f66","name":"https://git.kernel.org/stable/c/da10db73ada26345244ea5dc52f974692bd05f66","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46067","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46067","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b74a120bcf50787e5b9a2c3dcff999f9836ce1db da10db73ada26345244ea5dc52f974692bd05f66 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b74a120bcf50787e5b9a2c3dcff999f9836ce1db a34dac6482e53e2c76944f25b1489b9b7da3a6e6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.4 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"46067","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46067","cve":"CVE-2026-46067","epss":"0.001170000","percentile":"0.019550000","score_date":"2026-06-29","updated_at":"2026-06-30 00:06:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.4","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-06-14T17:51:55.381Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46067","datePublished":"2026-05-27T12:57:45.648Z","dateReserved":"2026-05-13T15:03:33.095Z","dateUpdated":"2026-06-14T17:51:55.381Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:27","lastModifiedDate":"2026-06-24 17:04:01","problem_types":["CWE-125"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.2}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.4","matchCriteriaId":"CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46067","Ordinal":"1","Title":"mm/damon/core: validate damos_quota_goal->nid for node_memcg_{us","CVE":"CVE-2026-46067","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46067","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"mm/damon/core: validate damos_quota_goal->nid for node_memcg_{us"}]}}}