CVE-2025-39754

MEDIUM EPSS 1.3%
Published Sep 11, 20259mo ago · Modified Jun 17, 20261w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Sep 11, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-362

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥4.4  –  <6.12.43
linuxlinux_kernel*≥6.13  –  <6.15.11
linuxlinux_kernel*≥6.16  –  <6.16.2
linuxlinux_kernel6.17any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/09fc018f48871123ad5dbd7b03c956580232ed76
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2a1f3663974162b8f1e098196f557cfc1d160138
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/45d19b4b6c2d422771c29b83462d84afcbb33f01
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b625883ccbcc2b57808db51d1375b1d7b9bcb3e5
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/09fc018f48871123ad5dbd7b03c956580232ed76
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2a1f3663974162b8f1e098196f557cfc1d160138
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/45d19b4b6c2d422771c29b83462d84afcbb33f01
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b625883ccbcc2b57808db51d1375b1d7b9bcb3e5
    Patch