CVE-2026-63953 mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: fix pgtable leak in migratevmainserthugepmdpage When migratevmainserthugepmdpage jumps to unlockabort due to a PMD check failure, the pgtable allocated earlier via pteallocone is never freed, causing a memory...

PT-2026-61446

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A spinlock leak occurs in the migrate vma insert huge pmd page function. When the check stable address space function fails after the PMD spinlock is acquired through pmd lock, the...