Vulnerability-Lookup

OESA-2025-2411 (CVE-2025-39754)

Vulnerability from osv_openeuler – Published: 2025-10-11 11:09 – Updated: 2026-08-06 11:09 – Source website

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

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().(CVE-2025-39754)

Severity

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-39754	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "bpftool-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "bpftool-debuginfo-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-debuginfo-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-debugsource-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-devel-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-extra-modules-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-headers-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-source-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-tools-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-tools-debuginfo-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "kernel-tools-devel-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "perf-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "perf-debuginfo-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "python3-perf-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm",
          "python3-perf-debuginfo-6.6.0-111.0.0.117.oe2403sp2.aarch64.rpm"
        ],
        "src": [
          "kernel-6.6.0-111.0.0.117.oe2403sp2.src.rpm"
        ],
        "x86_64": [
          "bpftool-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "bpftool-debuginfo-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-debuginfo-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-debugsource-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-devel-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-extra-modules-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-headers-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-source-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-tools-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-tools-debuginfo-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "kernel-tools-devel-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "perf-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "perf-debuginfo-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "python3-perf-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm",
          "python3-perf-debuginfo-6.6.0-111.0.0.117.oe2403sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP2",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-24.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.0-111.0.0.117.oe2403sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmm/smaps: fix race between smaps_hugetlb_range and migration\n\nsmaps_hugetlb_range() handles the pte without holdling ptl, and may be\nconcurrenct with migration, leaing to BUG_ON in pfn_swap_entry_to_page(). \nThe race is as follows.\n\nsmaps_hugetlb_range              migrate_pages\n  huge_ptep_get\n                                   remove_migration_ptes\n\t\t\t\t   folio_unlock\n  pfn_swap_entry_folio\n    BUG_ON\n\nTo fix it, hold ptl lock in smaps_hugetlb_range().(CVE-2025-39754)",
  "id": "OESA-2025-2411",
  "modified": "2026-08-06T11:09:29Z",
  "published": "2025-10-11T11:09:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2411"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39754"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2025-39754"
  ]
}

CVE-2025-39754 (GCVE-0-2025-39754)

Vulnerability from cvelistv5 – Published: 2025-09-11 16:52 – Updated: 2026-05-11 21:35

Title

mm/smaps: fix race between smaps_hugetlb_range and migration

Summary

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().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/2a1f3663974162b8f…
https://git.kernel.org/stable/c/09fc018f48871123a…
https://git.kernel.org/stable/c/b625883ccbcc2b578…
https://git.kernel.org/stable/c/45d19b4b6c2d42277…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 25ee01a2fca02dfb5a3ce316e77910c468108199 , < 2a1f3663974162b8f1e098196f557cfc1d160138 (git) Affected: 25ee01a2fca02dfb5a3ce316e77910c468108199 , < 09fc018f48871123ad5dbd7b03c956580232ed76 (git) Affected: 25ee01a2fca02dfb5a3ce316e77910c468108199 , < b625883ccbcc2b57808db51d1375b1d7b9bcb3e5 (git) Affected: 25ee01a2fca02dfb5a3ce316e77910c468108199 , < 45d19b4b6c2d422771c29b83462d84afcbb33f01 (git)
Linux	Linux	Affected: 4.4 Unaffected: 0 , < 4.4 (semver) Unaffected: 6.12.43 , ≤ 6.12.* (semver) Unaffected: 6.15.11 , ≤ 6.15.* (semver) Unaffected: 6.16.2 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/proc/task_mmu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "versions": [
            {
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              "version": "4.4"
            },
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              "status": "unaffected",
              "version": "0",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/smaps: fix race between smaps_hugetlb_range and migration\n\nsmaps_hugetlb_range() handles the pte without holdling ptl, and may be\nconcurrenct with migration, leaing to BUG_ON in pfn_swap_entry_to_page(). \nThe race is as follows.\n\nsmaps_hugetlb_range              migrate_pages\n  huge_ptep_get\n                                   remove_migration_ptes\n\t\t\t\t   folio_unlock\n  pfn_swap_entry_folio\n    BUG_ON\n\nTo fix it, hold ptl lock in smaps_hugetlb_range()."
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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