CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's memory management subsystem, specifically in the handling of PMD spinlocks during the migration of virtual memory areas. If the check_stable_address_space() function fails, the spinlock may remain engaged indefinitely, resulting in a deadlock situation that can disrupt system operations. System administrators and developers working with Linux kernel versions that include this code should prioritize applying the fix to prevent potential system hangs and ensure stability.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: mm/migrate_device: fix spinlock leak in migrate_vma_insert_huge_pmd_page When check_stable_address_space() fails after the PMD spinlock has been acquired via pmd_lock(), the code jumps directly to the abort label, bypassing the spin_unlock() call in unlock_abort. This causes the PMD spinlock to be permanently held, leading to a deadlock. Change the goto target from abort to unlock_abort to ensure the spinlock is always released on this error path.
Related CVEs
Other vulnerabilities affecting the same vendor(s)