CVE-2025-39754

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: A race condition exists between smaps hugetlb range() and page migration within the kernel’s memory management subsystem. Specifically, smaps hugetlb range() accesses page table entries (pte) without holding the page table lock (ptl), potentially leading to a BUG ON error in pfn swap entry to page() during concurrent page migration. The issue arises from the interaction between huge ptep get() in smaps hugetlb range() and remove migration ptes() during migration, specifically after folio unlock().

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.