{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63953", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.023Z", "datePublished": "2026-07-19T14:55:45.509Z", "dateUpdated": "2026-07-19T14:55:45.509Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T14:55:45.509Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page\n\nWhen migrate_vma_insert_huge_pmd_page() jumps to unlock_abort due\nto a PMD check failure, the pgtable allocated earlier via\npte_alloc_one() is never freed, causing a memory leak.\n\nAdded free_abort label to release the pgtable in error path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/migrate_device.c"], "versions": [{"version": "a30b48bf1b244f11bf9b6d20cdccfe0c2264130c", "lessThan": "24861d04f197bb651e9dfb211978271c15f75a98", "status": "affected", "versionType": "git"}, {"version": "a30b48bf1b244f11bf9b6d20cdccfe0c2264130c", "lessThan": "2c6f81d58741349298f51ff697d988cb42881453", "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/migrate_device.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.12", "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": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/24861d04f197bb651e9dfb211978271c15f75a98"}, {"url": "https://git.kernel.org/stable/c/2c6f81d58741349298f51ff697d988cb42881453"}], "title": "mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page", "x_generator": {"engine": "bippy-1.2.0"}}}}

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