CVE-2025-39754

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Source
https://cve.org/CVERecord?id=CVE-2025-39754
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39754.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-39754
Downstream
Related
Published
2025-09-11T16:52:24.763Z
Modified
2026-03-12T02:16:08.773931Z
Summary
mm/smaps: fix race between smaps_hugetlb_range and migration
Details

In the Linux kernel, the following vulnerability has been resolved:

mm/smaps: fix race between smapshugetlbrange and migration

smapshugetlbrange() handles the pte without holdling ptl, and may be concurrenct with migration, leaing to BUGON in pfnswapentryto_page(). The race is as follows.

smapshugetlbrange migratepages hugeptepget removemigrationptes foliounlock pfnswapentryfolio BUGON

To fix it, hold ptl lock in smapshugetlbrange().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39754.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
25ee01a2fca02dfb5a3ce316e77910c468108199
Fixed
2a1f3663974162b8f1e098196f557cfc1d160138
Fixed
09fc018f48871123ad5dbd7b03c956580232ed76
Fixed
b625883ccbcc2b57808db51d1375b1d7b9bcb3e5
Fixed
45d19b4b6c2d422771c29b83462d84afcbb33f01

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39754.json"