Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-38686

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]
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 6.3%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2025-38686


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