Vulnerability Description
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().
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.4, < 6.12.43 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/09fc018f48871123ad5dbd7b03c956580232ed76Patch
- https://git.kernel.org/stable/c/2a1f3663974162b8f1e098196f557cfc1d160138Patch
- https://git.kernel.org/stable/c/45d19b4b6c2d422771c29b83462d84afcbb33f01Patch
- https://git.kernel.org/stable/c/b625883ccbcc2b57808db51d1375b1d7b9bcb3e5Patch
FAQ
What is CVE-2025-39754?
CVE-2025-39754 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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 b...
How severe is CVE-2025-39754?
CVE-2025-39754 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-39754?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.