{"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"}}}}