CVEvulnerability

CVE-2025-39754

4.7 MEDIUM Published 2025-09-11 Modified 2026-10-21 Official page ↗
Status
Modified
Published
2025-09-11
Last modified
2026-10-21
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-362

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().

Affected configurations

• linux linux kernel (>= 4.4 < 6.12.43) • linux linux kernel (>= 6.13 < 6.15.11) • linux linux kernel (>= 6.16 < 6.16.2) • linux linux kernel 6.17

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References