{"api_version":"1","generated_at":"2026-06-28T18:49:39+00:00","cve":"CVE-2026-53189","urls":{"html":"https://cve.report/CVE-2026-53189","api":"https://cve.report/api/cve/CVE-2026-53189.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53189","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53189"},"summary":{"title":"mm/huge_memory: update file PMD counter before folio_put()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: update file PMD counter before folio_put()\n\n__split_huge_pmd_locked() updates the file/shmem RSS counter after\ndropping the PMD mapping's folio reference.  If folio_put() drops the last\nreference, mm_counter_file() can later read freed folio state via\nfolio_test_swapbacked().\n\nMove the counter update before folio_put().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-25 09:16:36","updated_at":"2026-06-28 08:16:37"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9","name":"https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ed5b030931292c94133437ac5e5ff580e498eabd","name":"https://git.kernel.org/stable/c/ed5b030931292c94133437ac5e5ff580e498eabd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877","name":"https://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ae9d4caf6f133e884cf5fcda4982c493b35e5194","name":"https://git.kernel.org/stable/c/ae9d4caf6f133e884cf5fcda4982c493b35e5194","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59","name":"https://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8d878059924f12c1bc24556a92ec56add74de3c8","name":"https://git.kernel.org/stable/c/8d878059924f12c1bc24556a92ec56add74de3c8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce","name":"https://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad","name":"https://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53189","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53189","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fadae2953072e9005c5f1d64e1049edb043494dc 84b3212b166b446faea27ebebb7161405ffceef9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fadae2953072e9005c5f1d64e1049edb043494dc 108963978a681c0c468d279cac2b930c27672877 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fadae2953072e9005c5f1d64e1049edb043494dc 459771c9cf30f378bdbd30fc65d17f7eb931bb59 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fadae2953072e9005c5f1d64e1049edb043494dc ae9d4caf6f133e884cf5fcda4982c493b35e5194 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53189","cve":"CVE-2026-53189","epss":"0.001840000","percentile":"0.082200000","score_date":"2026-06-27","updated_at":"2026-06-28 00:08:50"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/huge_memory.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"84b3212b166b446faea27ebebb7161405ffceef9","status":"affected","version":"fadae2953072e9005c5f1d64e1049edb043494dc","versionType":"git"},{"lessThan":"108963978a681c0c468d279cac2b930c27672877","status":"affected","version":"fadae2953072e9005c5f1d64e1049edb043494dc","versionType":"git"},{"lessThan":"459771c9cf30f378bdbd30fc65d17f7eb931bb59","status":"affected","version":"fadae2953072e9005c5f1d64e1049edb043494dc","versionType":"git"},{"lessThan":"ae9d4caf6f133e884cf5fcda4982c493b35e5194","status":"affected","version":"fadae2953072e9005c5f1d64e1049edb043494dc","versionType":"git"},{"lessThan":"6c29a8ba084e89499ca77b947e07ae817f9c16ce","status":"affected","version":"fadae2953072e9005c5f1d64e1049edb043494dc","versionType":"git"},{"lessThan":"5f5b604e1e6bde4e889199168ee80fe8306d06ad","status":"affected","version":"fadae2953072e9005c5f1d64e1049edb043494dc","versionType":"git"},{"lessThan":"ed5b030931292c94133437ac5e5ff580e498eabd","status":"affected","version":"fadae2953072e9005c5f1d64e1049edb043494dc","versionType":"git"},{"lessThan":"8d878059924f12c1bc24556a92ec56add74de3c8","status":"affected","version":"fadae2953072e9005c5f1d64e1049edb043494dc","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["mm/huge_memory.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","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":"5.10.259","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.94","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.36","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"4.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: update file PMD counter before folio_put()\n\n__split_huge_pmd_locked() updates the file/shmem RSS counter after\ndropping the PMD mapping's folio reference.  If folio_put() drops the last\nreference, mm_counter_file() can later read freed folio state via\nfolio_test_swapbacked().\n\nMove the counter update before folio_put()."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-06-28T06:40:05.635Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9"},{"url":"https://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877"},{"url":"https://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59"},{"url":"https://git.kernel.org/stable/c/ae9d4caf6f133e884cf5fcda4982c493b35e5194"},{"url":"https://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce"},{"url":"https://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad"},{"url":"https://git.kernel.org/stable/c/ed5b030931292c94133437ac5e5ff580e498eabd"},{"url":"https://git.kernel.org/stable/c/8d878059924f12c1bc24556a92ec56add74de3c8"}],"title":"mm/huge_memory: update file PMD counter before folio_put()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53189","datePublished":"2026-06-25T08:39:01.708Z","dateReserved":"2026-06-09T07:44:35.390Z","dateUpdated":"2026-06-28T06:40:05.635Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-25 09:16:36","lastModifiedDate":"2026-06-28 08:16:37","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53189","Ordinal":"1","Title":"mm/huge_memory: update file PMD counter before folio_put()","CVE":"CVE-2026-53189","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53189","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: update file PMD counter before folio_put()\n\n__split_huge_pmd_locked() updates the file/shmem RSS counter after\ndropping the PMD mapping's folio reference.  If folio_put() drops the last\nreference, mm_counter_file() can later read freed folio state via\nfolio_test_swapbacked().\n\nMove the counter update before folio_put().","Type":"Description","Title":"mm/huge_memory: update file PMD counter before folio_put()"}]}}}