GHSA-fppf-vq4v-6j7g
Record from GitHub Advisory Database · Published September 11, 2025
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().
Risk scores
Timeline
- Sep 11, 2025 CVE Published
- Apr 10, 2026 Security Advisory
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References
- https://git.kernel.org/stable/c/2a1f3663974162b8f1e098196f557cfc1d160138 url
- https://git.kernel.org/stable/c/45d19b4b6c2d422771c29b83462d84afcbb33f01 url
- https://nvd.nist.gov/vuln/detail/CVE-2025-39754 advisory
- https://git.kernel.org/stable/c/09fc018f48871123ad5dbd7b03c956580232ed76 url
- https://git.kernel.org/stable/c/b625883ccbcc2b57808db51d1375b1d7b9bcb3e5 url