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{"bugzilla": {"description": "kernel: mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page", "id": "2502374", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502374"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's memory management component, specifically within the `mm/migrate_device` module. When handling device page migration, a page table (pgtable) allocated during the `migrate_vma_insert_huge_pmd_page` function may not be properly freed if a specific error condition occurs. This oversight can lead to a memory leak, potentially impacting system stability and performance over time."], "name": "CVE-2026-63953", "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": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63953\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63953\nhttps://lore.kernel.org/linux-cve-announce/2026071955-CVE-2026-63953-4f91@gregkh/T"]}