Tracker / CVE-2025-39754
CVE-2025-39754
Medium 4.7
In the Linux kernel, the following vulnerability has been resolved: mm/smaps: fix race between smaps_hugetlb_range and migration smaps_hugetlb_range() handles the pte without holdling ptl, and may be concurrenct with migration, leaing to BUG_ON in pfn_swap_entry_to_page(). The race is as follows. smaps_hugetlb_range migrate_pages huge_ptep_get remove_migration_ptes folio_unlock pfn_swap_entry_folio BUG_ON To fix it, hold ptl lock in smaps_hugetlb_range().
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.4 → 6.12.43 |
| linux | linux_kernel · 6.13 → 6.15.11 |
| linux | linux_kernel · 6.16 → 6.16.2 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.