CVE-2025-39754mm/smaps: fix race between smaps_hugetlb_range and migration
- 4.7MediumCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 96% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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().
Timeline
ID reserved
By Linux
- 5 months later
· 5 months later
Published
- 14 months later
· 14 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 96% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.
Affected products
- affected 25ee01a2fca02dfb5a3ce316e77910c468108199 – < 37ee0d97298b0547cb26b6957ccfea2d356bd0e7
- affected 25ee01a2fca02dfb5a3ce316e77910c468108199 – < f76089018b34dbe0c2e9b67c5b7d8860668748bb
- affected 25ee01a2fca02dfb5a3ce316e77910c468108199 – < 2a1f3663974162b8f1e098196f557cfc1d160138
- affected 25ee01a2fca02dfb5a3ce316e77910c468108199 – < 09fc018f48871123ad5dbd7b03c956580232ed76
- affected 25ee01a2fca02dfb5a3ce316e77910c468108199 – < b625883ccbcc2b57808db51d1375b1d7b9bcb3e5
- affected 25ee01a2fca02dfb5a3ce316e77910c468108199 – < 45d19b4b6c2d422771c29b83462d84afcbb33f01
- affected 4.4
- unaffected < 4.4
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.43 – ≤ 6.12.*
- unaffected 6.15.11 – ≤ 6.15.*
- unaffected 6.16.2 – ≤ 6.16.*
- unaffected 6.17 – ≤ *
References
References6
- https://git.kernel.org/stable/c/37ee0d97298b0547cb26b6957ccfea2d356bd0e7 (opens in a new tab)
- https://git.kernel.org/stable/c/f76089018b34dbe0c2e9b67c5b7d8860668748bb (opens in a new tab)
- https://git.kernel.org/stable/c/2a1f3663974162b8f1e098196f557cfc1d160138 (opens in a new tab)
- https://git.kernel.org/stable/c/09fc018f48871123ad5dbd7b03c956580232ed76 (opens in a new tab)
- https://git.kernel.org/stable/c/b625883ccbcc2b57808db51d1375b1d7b9bcb3e5 (opens in a new tab)
- https://git.kernel.org/stable/c/45d19b4b6c2d422771c29b83462d84afcbb33f01 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-28957 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-39754)Record last updated .