CVE-2025-39754

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 v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc1::::::

History

No history.

Information

Published : 2025-09-11 17:15

Updated : 2025-11-26 16:20

NVD link : CVE-2025-39754

Mitre link : CVE-2025-39754

CVE.ORG link : CVE-2025-39754

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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