VDB
DEBIAN-CVE-2025-38686
DEBIAN-CVE-2025-38686
PUBLISHED
CVSS 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a crash in UFFDIO_MOVE when PMD is a migration entry When UFFDIO_MOVE encounters a migration PMD entry, it proceeds with obtaining a folio and accessing it even though the entry is swp_entry_t. Add the missing check and let split_huge_pmd() handle migration entries. While at it also remove unnecessary folio check. [surenb@google.com: remove extra folio check, per David]
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0, 6.12.38-1, 6.12.43-1~bpo12+1 |
| Debian:14 | linux | 6.12.63-1~bpo12+1, 6.12.69-1, 6.12.69-1~bpo12+1 |
Timeline
- Sep 4, 2025 CVE Published
- Apr 28, 2026 CVE Updated