CVE-2026-64129 mm/migrate_device: fix spinlock leak in migrate_vma_insert_huge_pmd_page

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: fix spinlock leak in migratevmainserthugepmdpage When checkstableaddressspace fails after the PMD spinlock has been acquired via pmdlock, the code jumps directly to the abort label, bypassing the spinunlock call...

CVE-2026-64129

The CVE-2026-64129 entry concerns the Linux kernel vulnerability in mm/migrate_device: migrate_vma_insert_huge_pmd_page where a check_stable_address_space() failure after acquiring the PMD spinlock via pmd_lock() could jump to abort, bypassing spin_unlock() in unlock_abort. This caused the PMD sp...